Full opinion text
OPINION OF THE COURT TABLE OF CONTENTS Page I. INTRODUCTION........................................................1081 II. THE MEGAN’S LAW SCHEME...........................................1081 III. THE PRIOR PROCEEDINGS.............................................1087 IV. THE ROOKER-FELDMAN ISSUE........................................1090 V. THE EX POST FACTO AND DOUBLE JEOPARDY ISSUES................1092 A. The Artway Standard.................................................1093 B. The Impact Of Ursery And Hendricks..................................1093 C. Legislative Purpose...................................................1096 Page .1097 D. Objective Purpose............................ . 1101 E. Effects...................................... . 1105 F. Satisfaction Of The Artway Test................ VI. THE PROCEDURAL DUE PROCESS ISSUES..... 1105 A. Deprivation Of A Liberty Interest.............. 1105 B. Standards For Determining The Process Due. ... 1106 C. Allocation Of The Burden Of Persuasion......... 1107 D. Extent Of The State’s Evidentiary Burden....... 1110 VII. CONCLUSION.................... 1111 STAPLETON, Circuit Judge: I. INTRODUCTION On July 29, 1994, Megan Kanka, a seven year old child, was abducted, raped, and murdered near her home. The man who confessed to Megan’s murder lived in a house across the street from the Kanka family and had twice been convicted of sex offenses involving young girls. Megan, her parents, local police, and the members of the community were unaware of the accused murderer’s history; nor did they know that he shared his house with two other men who had been convicted of sex offenses. By October 31, 1994, New Jersey had enacted the Registration and Community Notification Laws, Pub.L.1994, Chs. 128, 133 (codified at N.J.S.A. 2C:7-1 to 7-11) as part of a ten-bill package collectively referred to as “Megan’s Law.” This legislation required registration by those who had committed certain designated crimes involving sexual assault and provided for the dissemination of information about those required to register. Other states followed suit with their own versions of Megan’s Law and Congress passed a statute requiring a state program of registration and notification as a condition of receiving certain federal funds. By May of 1996, forty-nine states had adopted sex offender registration laws and thirty-two states maintained some form of community notification program. We have before us challenges to the constitutionality of the notification requirements of New Jersey’s Megan’s Law based on the Ex Post Facto, Double Jeopardy, and Due Process Clauses of the United States Constitution. The issues before us are difficult but relatively narrow. We are not called upon to decide whether Megan’s Law can constitutionally be applied to one who has committed one of the designated sex crimes after its enactment. Nor, of course, is it our responsibility to determine whether the policy judgments reflected in Megan’s Law are prudent ones. We hold that (1) the notification requirements of Megan’s Law do not constitute state inflicted “punishment” on Tier 2 and Tier 3 registrants for purposes of the Ex Post Facto and Double Jeopardy Clauses; (2) the Due Process Clause of the United States Constitution forecloses New Jersey from placing the burden of persuasion on the registrant in a proceeding challenging a Tier 2 or Tier 3 classification and notification plan; and (3) the Due Process Clause requires the state at such a proceeding to shoulder the burden of justifying the classification and notification plan by clear and convincing evidence. II. THE MEGAN’S LAW SCHEME A. Public reaction to Megan’s murder was intense, and New Jersey’s governor and legislature responded quickly. By August 15, 1994, two weeks after the discovery of Megan’s body, bills providing for registration and community notification had been introduced in the General Assembly. Two weeks later, the General Assembly declared the bills an “emergency,” allowing them to bypass committee and be passed the same day. In the Senate, no registration or notification bills had been introduced as of August 29, 1994. However, the Law and Public Safety Committee held a hearing upon pending legislation that pre-dated Megan’s Law and would have required victim notification on the release of offenders. In connection with its consideration of that legislation, the Committee received testimony and/or written reports from, inter alia, the American Civil Liberties Union, municipal officials, inmates, state and federal legislators, and the Attorney General on issues related to sex offender registration and community notification. Registration and community notification bills identical to their General Assembly counterparts were introduced in the Senate on September 12, 1994. After hearing testimony from the ACLU, the New Jersey Coalition of Crime Victims, and corrections officials on September 26, 1994, the Senate Law and Public Safety Committee revised the bills by: (1) supplementing the list of crimes which require registration, (2) directing the Attorney General to consult with a twelve-member Advisory Council of experts to establish guidelines concerning the risk of reoffense, (3) identifying certain factors material to the determination of risk of reoffense, and (4) narrowing the scope of community notification. The Committee then favorably reported the amended versions to the Senate, see Senate Law & Pub. Safety Comm., Statement to Substitute for Senate Bill No. 14 & Assembly Bill No. 85 (N.J. Sept. 26, 1994), which approved the bills on October 3. The General Assembly followed suit by debating and approving the revised bill on October 20, 1994, and Governor Whitman signed it into law on October 31,1994. B. Megan’s Law establishes both a registration requirement and a three-tiered notification program. See Artway v. Attorney General, 81 F.3d 1235, 1243 (3d Cir.1996). The registration provisions were the subject of this court’s decision in Artway, where we upheld their constitutionality in the face of ex post facto, double jeopardy, bill of attainder, due process, equal protection, and vagueness challenges. We there summarized the operation of the registration provision: The registration provision requires all persons who complete a sentence for certain designated crimes involving sexual assault after Megan’s Law was enacted to register with local law enforcement. N.J.S.A. 2C:7-2b(l). Those committing these offenses and completing all incarceration, probation, and parole before the Law’s enactment must register only if, at the time of sentencing, their conduct was found to be “characterized by a pattern of repetitive and compulsive behavior.” Id. The registrant must provide the following information to the chief law enforcement officer of the municipality in which he resides: name, social security number, age, race, sex, date of birth, height, weight, hair and eye color, address of legal residence, address of any current temporary legal residence, and date and place of employment. N.J.S.A. 2C:7-4b(l). He must confirm his address every ninety days, notify the municipal law enforcement agency if he moves, and re-register with the law enforcement agency of any new municipality. N.J.S.A. 2C:7-2d to e. The registration agency then forwards the registrant’s information, as well as any additional information it may have, to the prosecutor of the county that prosecuted the registrant. N.J.S.A. 2C:7-4c to d. The prosecutor, in turn, forwards the information to the Division of State Police, which incorporates it into a central registry and notifies the prosecutor of the county in which the registrant plans to reside. Id. This information is available to law enforcement agencies of New Jersey, other states, and the United States. N.J.S.A. 2C:7-5. The registration information is not open to public inspection.... Failure of the sex offender to comply with registration is a fourth-degree crime. [N.J.S.A. 2C:7-2a.] 81 F.3d at 1243. The registration requirement persists for a period of 15 years from the date of conviction or the date of release from a correctional facility, whichever is later. It is only after this 15 year period that a registrant may make application to the Superior Court to terminate the obligation to register. The obligation may be terminated only upon a persuasive showing that the registrant is not likely to pose a threat to the safety of others. N.J.S.A. 2C:7-2f. C. The registration information provides a basis for the next step — notification. The prosecutor of the county where the sex offender intends to reside and the prosecutor from the county of conviction use the registration information and other data to jointly assess the risk of reoffense by the registered individual. N.J.S.A. 2C:7-8d(l). They determine whether the sex offender poses a low (Tier 1), moderate (Tier 2), or high (Tier 3) reoffense risk. N.J.S.A. 2C:7-8e. Every registrant at least qualifies for Tier 1 treatment, otherwise known as “law enforcement alert,” where notification extends only to law enforcement agencies likely to encounter the registrant. N.J.S.A. 2C:7-8c(l). In the case of those registrants posing a moderate risk of reoffense, Tier 2 notification, or “law enforcement, school and community organization alert,” issues to registered schools, day care centers, summer camps, and other community organizations which care for children or provide support to women and where individuals are likely to encounter the sex offender. N.J.S.A. 2C:7-8e(2). The high risk registrants merit Tier 3’s “community notification,” where members of the public likely to encounter the registrant are notified. N.J.S.A. 2C:7-8e(3). In order to preserve uniformity in the tier classification and notification process, the state Attorney General, in consultation with an advisory council, is required to develop and promulgate guidelines to be consulted by prosecutors in assessing the degree of risk of reoffense. N.J.S.A. 2C:7-8a, d. By statute, the guidelines are required to include the following considerations: (1) Conditions of release that minimize risk of reoffense, including but not limited to whether the offender is under supervision of probation or parole; receiving counseling, therapy or treatment; or residing in a home situation that provides guidance and supervision; (2) Physical conditions that minimize risk of re-offense, including but not limited to advanced age or debilitating illness; (3) Criminal history factors indicative of high risk of reoffense, including: (a) Whether the offender’s conduct was found to be characterized by repetitive and compulsive behavior; (b) Whether the offender served the maximum term; (c) Whether the offender committed the sex offense against a child; (4) Other criminal history factors to be considered in determining risk, including: (a) The relationship between the offender and the victim; (b) Whether the offense involved the use of a weapon, violence, or infliction of serious bodily injury; (c) The number, date and nature of pri- or offenses; (5) Whether psychological or psychiatric profiles indicate a risk of recidivism; (6) The offender’s response to treatment; (7) Recent behavior, including behavior while confined or while under supervision in the community as well as behavior in the community following service of sentence; and (8) Recent threats against persons or expressions of intent to commit additional crimes. N.J.S.A. 2C:7-8b. Pursuant to this statutory delegation of authority, the Attorney General has developed guidelines for law enforcement for classification and notification. See Guidelines for Law Enforcement for Notification to Local Officials and/or the Community of the Entry of a Sex Offender into the Community, June 1, 1996 (“Guidelines”). The Attorney General’s Guidelines require the prosecutors to use the Registrant Risk Assessment Scale (the “Scale”), a numerical scoring system designed with the assistance of mental health and law enforcement professionals, to evaluate the degree of risk of the sex offender. See Registrant Risk Assessment Scale Manual, Oct. 3, 1995 (“Manual”). The New Jersey Supreme Court has said of the creation of the Scale: A Committee of mental health professionals and legal experts ... developed the Scale. They examined risk assessment scales being used in the United States and Canada. After reviewing the scientific literature, the Committee selected for inclusion in the Seale those factors that met two conditions. First, all of the factors selected had to be empirically supported in the risk assessment field as criteria positively related to the risk of re-offense. Second, all of the factors selected had to be fairly concrete criteria that could be gathered in a consistent and reliable manner. In re C.A., 146 N.J. 71, 679 A.2d 1153, 1169 (1996). The Scale itself is a matrix with thirteen factors grouped into four general categories: (1) Seriousness of Offense; (2) Offense History; (3) Characteristics of Offender; and (4) Community Support. See Artway, 81 F.3d at 1244. Guided by the promulgated examples and commentary, the prosecutors determine whether the registrant poses a low, moderate, or high risk to the community under each of the factors and assign zero, one, or three points, respectively, for each factor. Then the prosecutors multiply these raw scores by a coefficient, reflective of the relative weight attributed to the various general categories by the creators of the Scale; raw scores for factors under Seriousness of Offense are multiplied by five, under Offense History by three, under Characteristics of Offender by two, and under Community Support by one. Prosecutors total the resulting amounts and place the registrant in the appropriate tier: Tier 1, low risk — 0 to 36 points; Tier 2, moderate risk — 37 to 73 points; and Tier 3, high risk — -74 to 111 points. Finally, the prosecutors consider the applicability of two exceptions: 1) If an offender has indicated that he will reoffend if released into the community and the available record reveals credible evidence to support this finding, then the offender will be deemed to be a high risk of reoffense regardless of the weighting procedure; and 2) if the offender demonstrates a physical condition that minimizes the risk of reoffense, including but not limited to advanced age or debilitating illness, then the offender will be deemed to be a low risk of reoffense regardless of the outcome of the weighting procedure. Manual at 1; see Artway, 81 F.3d at 1244. While the class of those who receive notification differs depending on a registrant’s classification, the type of information distributed is the same regardless of the classification. The package of information provided includes the registrant’s name, a recent photograph, a physical description, the offense of conviction, home address, place of employment or schooling, and a vehicle description and license plate number. “Those notified under Tier 2 are informed that the information is not to be shared with the general public, and every notification must contain a warning about the criminal consequences of vandalism, threats and assaults against the registrant or any of his associates.” Artway, 81 F.3d at 1244. D. The New Jersey courts have played an active role in refining and developing the Megan’s Law scheme. See In re G.B., 147 N.J. 62, 685 A.2d 1252 (1996); In re C.A., 146 N.J. 71, 679 A.2d 1158 (1996); Doe v. Poritz, 142 N.J. 1, 662 A.2d 367 (1995). In Doe, the New Jersey Supreme Court upheld the constitutionality of Megan’s Law and read into the statute and Guidelines certain additional procedures designed to prevent any “excessiveness of community notification.” 662 A.2d at 381. First, the Court added the “likely to encounter” the registrant restriction to Tier 2 notification. I'd As a result of the Doe decision, a prosecutor who has classified a registrant in Tier 2 must make an “individual determination” concerning the appropriate institutions and organizations to include in the notification program he creates. Id As articulated in the Guidelines, “[t]he decision as to which groups should appropriately be notified should be made on a case-by-case basis, following careful review.” Guidelines at 11. There is no “automatic inclusion of an organization simply because it is ‘registered’” with the local law enforcement agencies; rather, “likely to encounter” requires “having a fair chance to encounter” the registrant. Doe, 662 A.2d at 385. The Guidelines interpret the Court’s articulations to mean that the types of interactions which occur at the location and their attendant circumstances must demonstrate that contact with the offender is “reasonably certain.” Guidelines at 6-7. They provide, for example, that if a registrant regularly stops at a gas station merely to refuel, there would not be a “fair chance to encounter” him there. Id. at 7. Ordinarily, the “critical” factor for “ ‘likely to encounter’ is geography — how close is the institution or organization, in the ease of Tier Two notification, to the offender’s residence or place of work or school.” Doe, 662 A.2d at 385. However, the New Jersey Supreme Court explained: In some municipalities, not every institution or organization that would otherwise qualify for notification may be close enough to warrant same, but in some eases, ... institutions or organizations in other municipalities may be close enough. The same observations can be made for Tier Three notification. We do not attempt to define the area around the offender’s residence or place of work or school that may be included within the notification process, and assume it may differ from one locale to another. Depending upon the particular offender, factors other than geography may be considered if they are relevant to the offender’s likely whereabouts, such as an offender’s proclivity for certain locations, and geographic considerations may be affected by the nature of the offender’s characteristics and the institution in question, e.g., a repetitive and compulsive pedophile and a large elementary school. Id. 662 A.2d at 385-86. Moreover, the Guidelines provide that notification must be appropriately tailored to reach those members of the public who are at risk from the particular offender. The tailoring must include consideration of the relationship between the registrant and his prior victims. As the Guidelines suggest, sex offenders who have only victimized members of their own households may not pose a threat to most members of the community, and those that have targeted adult women may be of little risk to children; thus, the prosecutor may appropriately limit notification as all registered community organizations are not “likely to encounter” the offenders in either example. Doe also added to the Megan’s Law scheme a requirement that the prosecutor provide the registrant with notice of a Tier 2 or Tier 3 classification and the proposed notification plan. Id. 662 A.2d at 382. The Court insisted that the written notice describe the manner and details of the notification plan and inform the registrant of his rights to retain counsel and to challenge the prosecutor’s decisions. However, the Court “realize[d] that in some cases it may be impossible as a practical matter to give such notice, or to give it timely, and in those cases it may be dispensed with.” Id. The Guidelines elaborate on dispensing with the notice requirement: [I]f a Prosecutorf’s] Office does not receive notification of release of a person determined to be a Tier 3 offender until after the date of release, then, in order to protect the public, notice to the offender may be dispensed with. The Prosecutor’s Office may apply to the designated judge for an order allowing notification to take place without service of notice to the offender, upon receipt of the judge’s order. This may occur, for example, when an offender who has been civilly committed is released on short notice by a judge. Also, cases will arise where registrants will avoid service of the notice. In those cases, the Prosecutor’s Office may apply to the designated judge for an order allowing notification to take place without service of notice to the offender, where the Prosecutor can demonstrate that every good faith effort was made within the allotted time-frame to serve the registrant. If service has not been completed within 3 days of the date that the tier decision is made, then the Prosecutor may apply to the court for the order allowing notification to occur without notice to the registrant. Guidelines at 17-18. Finally, Doe required the state to make available a pre-notification judicial review process for sex offenders who wish to contest their classification or the notification plan. 662 A.2d at 382. The registrant bears the burden of persuasion in these summary, in camera proceedings, where the court decides only whether to affirm or reverse the prosecutor’s determination. Thus, where the state has met its burden of presenting evidence that “prima facie justifies the proposed level and manner of notification,” the court will affirm the prosecutor’s determination “unless it is persuaded by a preponderance of the evidence that it does not conform to the laws and Guidelines.” Id. 662 A.2d at 383. The “only issue for the court on the Tier level of notification is the risk of reoffense;” review of the notification plan largely involves interpretation and application of the “mandatory” limits on notification, such as the “likely to encounter” standard, articulated in the Doe opinion. Id. 662 A.2d at 383-84. Still, the courts are to understand that “the Scale is merely a tool,” In re G.B., 685 A.2d at 1261, and they are cautioned not to “blindly follow the numerical calculations” but to make a “case-by-case” determination regarding tier classification and scope of notification. In re C.A., 679 A.2d at 1171-72. The New Jersey Supreme Court has recognized that “a registrant is entitled to lodge three distinct challenges to his tier designation”: First, a registrant may introduce evidence that the calculation that led to the Scale score was incorrectly performed either because of a factual error, because the registrant disputes a prior offense, because the variable factors were improperly determined, or for similar reasons. Second, a registrant may introduce evidence at the hearing that the Scale calculations do not properly encapsulate his specific case; or phrased differently, a registrant may maintain that his case falls outside the “heartland” of cases and, therefore, that he deserves to be placed in a tier other than that called for by the prosecutor’s Scale score. Finally, a registrant may introduce evidence that the extent of notification called for by his tier categorization is excessive because of unique aspects of his ease. Challenges to the Scale itself, or challenges to the weight afforded to any of the individual factors that comprise the Scale, are not permitted. Instead, all challenges must relate to the characteristics of the individual registrant and the shortcomings of the Scale in his particular case. In re G.B., 685 A.2d at 1264. The registrant’s hearing “is civil, not criminal, and remedial, not adversarial.” In re C.A., 679 A.2d at 1164. It follows the “format ... for probation violation hearings” in New Jersey. Id. 679 A.2d at 1166. The court possesses broad discretion over whether and to what extent witnesses and cross examination will be allowed. Doe, 662 A.2d at 382-83. Rules of evidence do not apply, and the court may rely on documentary evidence, such as expert opinions, for all issues. Id. 662 A.2d at 388. Reliable hearsay is admissible. In re C.A., 679 A.2d at 1165. Moreover, “non-conviction offenses [i.e., criminal activities that have not been the subject of a conviction] are to be considered in evaluating a registrant’s risk of re-offense, provided there is sufficient evidence that the offense occurred.” Id. 679 A.2d at 1162. Where the proof, whether in the form of reliable hearsay, affidavits, or offers of live testimony, creates a genuine issue of material fact that the tier designation or manner of notification is inappropriate, “then the trial court should convene a fact-finding hearing and permit live testimony.” Id. 679 A.2d at 1166. Both sides may use expert testimony, but the proceedings are not to be converted into “long drawn-out contests between experts.” Doe, 662 A.2d at 384. Thus, courts must permit registrants to introduce expert testimony which tends to establish that the Scale does not properly account for aspects of the registrant’s character or prior offense, where those aspects are relevant and material to the tier classification, and, in the court’s opinion, would assist in the disposition of the ease. In re G.B., 685 A.2d at 1265-66. E. In Artway, we sustained the constitutionality of the provisions of Megan’s Law requiring registration and Tier 1 notification. We declined, however, to address the accompanying constitutional challenge to the provisions requiring the broader notification authorized for Tier 2 and Tier 3 classifications. We found that challenge unripe in large part because the plaintiff there had not been classified and had not received a notification plan. We also noted that the record there lacked evidence of the effects of notification on the community. 81 F.3d at 1250. For purposes of the ensuing discussion, we will follow the convention established in our Art-way opinion, whereby “registration” includes Tier 1 notification and “notification” refers to Tier 2 and Tier 3 notification. Id., 81 F.3d at 1244. III. THE PRIOR PROCEEDINGS We have two actions before us: E.B. v. Vemiero, and W.P. v. Vemiero. They involve identical challenges to Megan’s Law; each alleges that notification violates ex post facto, double jeopardy, and procedural due process protections conferred by the United States Constitution. The plaintiffs in both actions are sex offenders who were convicted of their offenses prior to the enactment of Megan’s Law. The plaintiff in the individual action, E.B., comes within the broad language defining the class certified in W.P., constituting: All persons required to register as a sex offenderfsic ] pursuant to N.J.S.A. 2C:7-1 et seq. and whose offenses were committed prior to October 31,1994, the effective date of the New Jersey Registration and Community Notification Laws, and who have been or will be classified as a tier II or tier III offender. W.P. v. Poritz, 931 F.Supp. 1187, 1192 (D.N.J.1996). The defendants in E.B. are the Attorney General, the local county prosecutor, and the police chief, while in W.P. they are the Attorney General and various county prosecutors. A. In 1974, E.B. pled guilty in New Jersey Superior Court to three offenses of sexual abuse against young boys and received a thirty-three-year sentence. Two years later, he pled guilty in the Circuit Court in Peters-burg, Virginia, to two separate murders and was sentenced to concurrent terms of twenty years of incarceration in that state to run consecutive to the New Jersey sentence. In 1979, after serving less than six years of his thirty-three-year New Jersey sentence, E.B. was paroled and extradited to Virginia to serve the murder sentences. On June 15, 1989, E.B. was paroled by Virginia. He is now free, subject to supervised release by the New Jersey Bureau of Parole until July 23, 2006. Pursuant to Megan’s law, E.B. registered with the authorities in Englewood, New Jersey. On October 24, 1995, the Bergen County Prosecutor’s Office notified E.B. that he was classified as a Tier 3 sex offender and proposed to issue notification to “all public and private educational institutions and organizations within a one-half mile radius of the Plaintiff’s home, and all parties who resided or worked within a one block radius of the Plaintiffs home.” E.B. Complaint at ¶ 13. Upon E.B.’s objection to the classification and notification, a hearing was held in New Jersey Superior Court, Law Division. On December 18, 1995, the court ruled that the classification was appropriate and permitted notification to: (1) 82 public and private educational institutions, licensed day care centers and summer camps in Englewood, Teaneck, Bergenfield, Tenafly, Englewood Cliffs, Leonia and Fort Lee, and (2) all residences within a one block radius of E.B.’s house. E.B.’s appeals to the Appellate Division and the State Supreme Court were unsuccessful, but notification remained stayed by court order during the pendency of the proceedings. E.B. then filed his federal action. The district court entered a preliminary injunction, enjoining the defendants from implementing notification. E.B. v. Poritz, 914 F.Supp. 85 (D.N.J.1996). Defendants appeal from that order and a subsequent order denying their application for a stay of the preliminary injunction. B. Seven plaintiffs filed the initial complaint in W.P. in January 1996. Two months later, when the court certified the class, there were 22 representative plaintiffs, all classified as either Tier 2 or Tier 3 and facing prosecutors’ notification plans ranging in scope from notification of three schools to notification of all schools, day care centers, and registered community organizations in the city of Trenton, as well as all residents within a certain area of the city. Some of the representative plaintiffs had sought relief from a state court and were subject to the resulting state court orders. The district court promptly entered a preliminary injunction preventing notification for any of the class members. W.P. v. Poritz, 931 F.Supp. 1187 (D.N.J.1996). Thereafter, the court entered summary judgment for the defendants. W.P. v. Poritz, 931 F.Supp. 1199 (D.N.J.1996). Plaintiffs filed this appeal from the entry of summary judgment. C. The record in these eases contains affidavits from registrants and state authorities, the Attorney General’s publications concerning the Seale, registration and notification data, newspaper articles, and reports from other jurisdictions maintaining notification programs. The district court held the plaintiffs’ constitutional claims were ripe for review, and no one has challenged that determination on appeal. New Jersey’s Administrative Office of the Courts reports that, as of May 6, 1996, there were 528 registrants designated as Tier 1; 585 as Tier 2; and 59 as Tier 3; or 45 percent, 50 percent, and 5 percent, respectively, of all classified registrants. According to the county prosecutors, as of May 16, 1996, notification was completed for 135 out of the 644 individuals classified to Tier 2 or Tier 3. Administrative Office information also indicates that of the 117 registrants who pursued their notification challenges to a resolution, 62 had their tier levels affirmed. Fifty-two challenges resulted in changed tier classifications and 13 resulted in modification of the scope of notification. The record contains anecdotal evidence concerning the experiences of a total of at least nineteen sex offenders in New Jersey. In only six of these cases had state-compelled notification under Megan’s Law been carried out. In the remaining cases, members of the community had received information about the sex offenders from sources other than a Megan’s Law notification. In all the cases, the sentenced offender had experienced adverse repercussions. Loss of employment, eviction, and verbal abuse were not uncommon. Vandalism and threats were experienced but considerably less frequently. Two registrant affidavits speak of physical assaults following notification. One registrant reported being physically attacked on three separate occasions. In another case, a father and son broke into the registrant’s residence and assaulted a house guest whom they mistook for the sex offender. Police arrived on the scene and arrested the assailants, who were later prosecuted and convicted for criminal trespass. According to law enforcement records, the 135 cases in which Tier 2 and Tier 3 notifications have been completed' have produced only a single instance of a physical assault being reported to the authorities — the father and son attack on the person mistaken for a registrant. In addition, there was a total of four reports to law enforcement personnel of threats, harassment, or other offensive actions. In Bergen County, one Tier 3 registrant contacted the local police department and reported that his mother’s car had been vandalized. In Somerset County, a juvenile who registered under Megan’s Law reported to police that a harassing note had been left on his ear at school. In Sussex County, the prosecutor’s office received a call from the wife of a Tier 3 registrant who reported that a threatening note had been mailed to the registrant’s home. In Atlantic County, a Tier 2 registrant’s employer reported that the local school had disclosed the employment of the registrant and a boycott was planned for the employer’s restaurant. The police defused the situation by contacting the potential picketers and the school’s principal, who agreed to speak to his staff concerning the confidentiality of information received through notification. The record also includes information from the registration and notification experiences of other jurisdictions. A review of community notification in Washington state found that of the 176 notifications completed between March 1990 and March 1993, 14 incidents of harassment were reported, ranging in severity from multiple incidents of verbal abuse to a death threat and one assault. In addition, the record contains a January 1995 study by the Oregon Department of Corrections, undertaken to investigate the impact of the first 14 months of the state’s 1993 community notification statute. Even before this statute, probation and parole officers with a sex offender under supervision had provided notification to “local police; immediate and extended family members in contact with the offender; victims; other residents in the offender’s home; regular visitors to the home; employers; therapists; Children’s Services Division; landlords and apartment managers; ministers, pastors, and other officials. where the offender attends church; select neighbors; specific business[es] frequented by the offender; and close associates to the offender.” Oregon Dep’t of Corrections, Sex Offender Community Notification in Oregon at 7 (Jan.1995). This practice continued after enactment of the statute requiring notification to “a broader public.” As of the time of the study, there had been 237. notification plans submitted under the new law-. In this context, the Oregon Department of Corrections reported as follows: In January 1995, forty-five parole/probation sex offender specialists from thirty-five counties responded to a survey of their experience with Community Notification. These officers were responsible for a total caseload of 2,160 sex offenders. The following information was gained from the surveys and [Sex Offender Supervision] Network discussions: * * * * * * Less than 10% of offenders experienced some form of harassment. Incidents reported included name calling, graffiti, toilet papering and minor property vandalism, monitoring of a home by video camera, repeated reports of unfounded violations to parole/probation officers, and picketing of residences. There were two extreme cases of retaliation. One sex offender had a gun pointed at him and was threatened. In another ease, a victim had tires slashed and the offender was blamed. Although the offender passed a polygraph and was accountable for the time, there were threats made that the offender’s home would be burned down. ****** Other circumstances reported by parole/probation officers included: Community notification has made it more difficult to find residences for some sex offenders released from prison. ****** Notification has [affected] employment opportunities for sex offenders. * * * * * * Businesses who were initially willing quietly to employ a sex offender sometimes do not provide jobs when the hiring will clearly become public. Id. at 12-14. IV. THE ROOKER-FELDMAN ISSUE There is a threshold jurisdictional issue for decision. The appellants in E.B. contend that the district court was without subject matter jurisdiction under the doctrine articulated by the Supreme Court in Rooker v. Fidelity Trust Co., 263 U.S. 413, 44 S.Ct. 149, 68 L.Ed. 362 (1923), and District of Columbia Court of Appeals v. Feldman, 460 U.S. 462, 103 S.Ct. 1303, 75 L.Ed.2d 206 (1983). Section 1257 of Title 28 of the United States Code bestows upon the Supreme Court of the United States appellate jurisdiction to review final judgments of the highest courts of the respective states. The so-called Rooker-Feldman doctrine teaches that, by negative implication, the inferior federal courts lack subject matter jurisdiction to review judgments of those courts. We have interpreted the doctrine to encompass final decisions of lower state courts as well. See Port Auth. Police Benevolent Ass’n, Inc. v. Port Auth. of N.Y. & N.J., 973 F.2d 169, 177-78 (3d Cir.1992). Appellants point out that E.B. demanded and received judicial review of the prosecutor’s Tier 3 classification and notification plan and that he advanced federal constitutional arguments in that proceeding for preventing the classification and notification plan from being put into effect. See Tr. Megan’s Law Hearing (N.J.Super.Ct. Law Div. Dec. 7, 1995) at 6-9. The Superior Court, Law Division, after a hearing, rejected E.B.’s challenge and ordered that notification be given. E.B. appealed to the Appellate Division, which affirmed. The Supreme Court of New Jersey thereafter denied E.B.’s petition for certification of appeal. As appellants stress, the relief E.B. seeks in this proceeding is an injunction directing that the notification ordered by the New Jersey Superior Court, Law Division, not be carried out. We agree with appellants that this is a paradigm situation in which Rooker-Feld man precludes a federal district court from proceeding. To grant E.B. relief would require an inferior federal court to determine that the New Jersey court’s judgment was erroneous and would foreclose implementation of that judgment. See FOCUS v. Allegheny County Court of Common Pleas, 75 F.3d 834, 840 (3d Cir.1996). The district court reached a contrary conclusion because it believed that although E.B. raised constitutional issues, he “was denied an opportunity to meaningfully raise constitutional challenges to Megan’s Law.” 914 F.Supp. at 89 (emphasis supplied). Its belief was based primarily on the fact that the Supreme Court of New Jersey in Doe had described a Megan’s Law proceeding in the trial court as a “summary proceeding” and had stated that “the only issue for the court on the Tier level of notification is the risk of reoffense.” Id. 914 F.Supp. at 89-90; Doe, 662 A.2d at 382-83. This suggested to the district court that the New Jersey courts do not consider constitutional challenges in a Megan’s Law proceeding. 914 F.Supp. at 90. If we shared the belief of the district court that E.B.’s constitutional challenges were not considered by the New Jersey courts — and, under Doe, could not be considered by them — we would also conclude that Rooker-Feldman did not deprive the district court of jurisdiction. However, we do not read the Doe opinion as instructing New Jersey courts to ignore properly raised claims based on the federal Constitution, and it is clear that the New Jersey courts do not so read that opinion. In In re G.B., 286 N.J.Super. 396, 669 A.2d 303, 306 (N.J.Super.Ct.App.Div.1996), aff'd, 685 A.2d 1252, the Appellate Division considered constitutional challenges and rejected them on the merits because these same issues had been previously considered and rejected in Doe. Shortly thereafter, the Superior and Supreme Courts of New Jersey, in appeals from a denial of relief in a Megan’s Law proceeding, addressed constitutional challenges to Megan’s Law for which there was no binding precedent. See In re C.A., 679 A.2d at 1153. Even if there were not this clear evidence, however, we would have to “assume that state procedures will afford an adequate remedy, in the absence of unambiguous authority to the contrary.” Pennzoil Co. v. Texaco Inc., 481 U.S. 1, 15, 107 S.Ct. 1519,1528, 95 L.Ed.2d 1 (1987). The only remaining issue with respect to E.B. and the Rooker-Feldman doctrine is whether a litigant can be said to have a meaningful opportunity to raise an issue in a state proceeding when the highest court of that state has rejected, in another litigant’s case, the same argument the litigant wishes to raise. Our answer is in the affirmative. Rooker-Feldman abstention is necessary to preserve the United States Supreme Court’s appellate jurisdiction — as well as to limit federal court review of state court decisions to the avenue provided for such by Congress. See Ernst v. Child and Youth Services of Chester County, 108 F.3d 486, 491 (3d Cir.1997). The federal court structure established by Congress intends that only the Supreme Court have the opportunity to decide that a state court has reached an erroneous conclusion on a federal constitutional claim. Nothing suggests that this structure should be altered where the state court’s decision is based upon what is already settled precedent in that state. As we have previously observed, the interests served by Rooker-Feldman are quite similar to those served by giving a state court judgment res judicata effect in a subsequent federal proceeding. Marks v. Stinson, 19 F.3d 873, 885-86 n. 11 (3d Cir.1994); Valenti v. Mitchell, 962 F.2d 288, 297 (3d Cir.1992). If a litigant resorts to a state court and suffers an adverse judgment, a lower federal court must respect that judgment unless and until it is overturned. The litigant’s only remedy is by way of appeal through the state court system and by way of petition to the Supreme Court of the United States thereafter. We will, accordingly, reverse the judgment of the district court in E.B.’s case and remand with instructions to dismiss for want of subject matter jurisdiction. This does not mean, however, that the district court lacked jurisdiction over the class claims in W.P. As we concluded in Valenti, 962 F.2d at 298, “ Rooker-Feldman does not bar individual constitutional claims by persons not parties to earlier state court litigation.” In W.P., at least some of the representative plaintiffs were not the subject of any kind of judicial order when they filed this suit to secure injunctive relief against enforcement of Megan’s Law. Indeed, neither they nor the state had petitioned any state court for any relief. The claims of these class plaintiffs were sufficient to confer subject matter jurisdiction on the district court. V. THE EX POST FACTO AND DOUBLE JEOPARDY ISSUES The Ex Post Facto Clause forecloses retroactive application of a law that “inflicts a greater punishment, than the law annexed to the crime, when committed.” Calder v. Bull, 3 U.S. (3 Dall.) 386, 390, 1 L.Ed. 648 (1798). The Double Jeopardy Clause forbids “multiple punishments for the same offense.” United States v. Halper, 490 U.S. 435, 440, 109 S.Ct. 1892, 1897, 104 L.Ed.2d 487 (1989). Accordingly, neither clause is implicated unless the state has inflicted “punishment.” Since no one here suggests that “punishment” has a different meaning under one of these clauses than under the other, the critical issue to which we now turn is whether the notification called for in situations involving Tier 2 and Tier 3 registrants is “punishment” for purposes of the Ex Post Facto and Double Jeopardy Clauses. A. The Artway Standard In Artway, when we addressed the issue of whether registration under Megan’s Law constituted “punishment,” we found no Supreme Court precedent addressing a similar statutory provision. In order to “divine” a “test for punishment,” we reviewed the Supreme Court case law and looked for common considerations. 81 F.3d at 1254-63. Recognizing “that the appropriate ‘punishment’ analysis depends on the context,” we derived an “analytical framework for this case.” Id. 81 F.3d at 1261, 1263. Specifically, we concluded that a “measure must pass a three-prong analysis—(1) actual purpose, (2) objective purpose, and (3) effect—to constitute non-punishment.” Id. 81 F.3d at 1263. Under this Artway analysis, we first look to whether the adverse effect on individuals results from a desire on the part of the legislature to punish past conduct or is a byproduct of a bona fide legislative effort to remedy a perceived societal problem. “If the legislature intended Megan’s Law to be ‘punishment,’ i.e. retribution was one of its actual purposes, then it must fail constitutional scrutiny. If, on the other hand, ‘the restriction of the individual comes about as a relevant incident to a regulation,’ the measure will pass this first prong.” Id. (quoting De Veau v. Braisted, 363 U.S. 144, 160, 80 S.Ct. 1146, 1155, 4 L.Ed.2d 1109 (1960)). The second inquiry—into “objective purpose”—focuses on the operation of the legislative measure and on whether analogous measures have traditionally been regarded in our society as punishment. In Artway, we suggested that there were three aspects of “objective purpose” that should be considered by a court before deciding whether the party challenging the statute has carried its burden of showing that an objective observer in our society would perceive the measure as punitive. Id. It is important to consider the measure’s proportionality— whether the remedial purpose of a legislative measure purporting to be non-punitive can explain all the adverse effects on those involved. While it is true that “even remedial sanctions carry the sting of punishment,” id. 81 F.3d at 1260 (internal quotation marks omitted), only if the sting is not “reasonably related” to the remedial goal would an objective observer be justified in perceiving a punitive purpose, id. 81 F.3d at 1265. It is also important to consider history. If analogous measures have traditionally been regarded by our society as “serving] punitive purposes” and the text and the legislative history do “not make [the legislature’s] plausible remedial purposes clear,” id. 81 F.3d at 1257, there is an objective basis for regarding the measure as punishment. Finally, we noted in Artway that some measures are intended to have a mixed salutary and deterrent effect. The examples we gave were taxes on illegal activities (like possession of drugs) and on activities that the state coneededly wished to discourage. See id. 81 F.3d at 1259. Such mixed measures will not be deemed to have an objectively punitive purpose despite their deterrent purpose unless that deterrent purpose is an unnecessary. complement to the measure’s salutary operation, the measure is operating in an unusual manner inconsistent with its historically mixed purposes, or the deterrent purpose overwhelms the salutary purpose. See id. 81 F.3d at 1263. “The final prong [of the Artway analysis] examines whether the effects—or ‘sting’—of a measure is so harsh ‘as a matter of degree’ that it constitutes ‘punishment.’ ” Id. 81 F.3d at 1266 (citing California Dep’t of Corrections v. Morales, 514 U.S. 499, 509, 115 S.Ct. 1597, 1603, 131 L.Ed.2d 588 (1995)). This prong necessarily involves difficult line-drawing. Unfortunately, the Supreme Court case law provides only a few fixed points. We know that, under certain circumstances, the “sting” of incarceration or forfeiture of one’s citizenship is sufficiently extraordinary to require a finding of punishment, see Miller v. Florida, 482 U.S. 423, 107 S.Ct. 2446, 96 L.Ed.2d 351 (1987); Trop v. Dulles, 356 U.S. 86, 78 S.Ct. 590, 2 L.Ed.2d 630 (1958), and we have recently been told that civil commitment of violent sex offenders does not, see Kansas v. Hendricks, — U.S. -, 117 S.Ct. 2072, 138 L.Ed.2d 501 (1997). B. The Impact Of Ursery And Hendricks There are two recent Supreme Court cases which potentially bear upon our deeision: United States v. Ursery, — U.S. -, 116 S.Ct. 2135, 135 L.Ed.2d 549 (1996), and Kansas v. Hendricks, at -, 117 S.Ct. at 2072. Appellees insist that after Ursery and Hendricks, Artway does not provide an appropriate standard for determining whether Megan’s Law notification constitutes “punishment” for purposes of the Ex Post Facto and Double Jeopardy Clauses. We disagree. In Ursery, the Supreme Court held that “civil forfeitures ... do not constitute ‘punishment’ for purposes of the Double Jeopardy Clause” even when the value of the property forfeited is arguably excessive when compared to the harm suffered by the government from the conduct giving rise to the forfeiture. — U.S. at -, 116 S.Ct. at 2138. The Court first emphasized that its case law had sharply distinguished between in rem forfeiture proceedings and in person-am civil fine proceedings. It explained that in the latter “it is the wrongdoer in person who is proceeded against ... and punished” while in the former “it is the property which is proceeded against, and by resort to a legal fiction, held guilty and condemned.” Id. at -, 116 S.Ct. at 2145 (quoting from Various Items of Personal Property v. United States, 282 U.S. 577, 580-81, 51 S.Ct. 282, 284, 75 L.Ed. 558 (1931)). Thus, civil forfeitures are not “criminal punishments because they [do] not impose a second in personam penalty for the criminal defendant’s wrongdoing.” Id. at -, 116 S.Ct. at 2141. Second, the Court noted, “[c]ivil forfeitures, in contrast to civil penalties, are designed to do more than simply compensate the Government. Forfeitures ... are designed primarily to confiscate property used in violation of the law, and to require disgorgement of the fruits of illegal conduct. [For this reason,] it is virtually impossible to quantify, even approximately, the nonpunitive purposes served by a particular civil forfeiture.” Id. at -, 116 S.Ct. at 2145. Accordingly, while a court can determine whether a civil fine has a punitive component by comparing its size to the harm experienced by the government, a court is not in a position “to determine whether a particular forfeiture bears no rational relationship to the nonpunitive purposes of that forfeiture.” Id. The holding of Ursery is a narrow one limited to civil forfeitures. Neither of the principal rationales supporting its conclusion is pertinent here and we find nothing in the Court’s reasoning that is inconsistent with the Artway standard. It necessarily follows that Ursery provides no justification for abandoning that standard. See Third Circuit Internal Operating Procedures 9.1. After the district court’s decision in these cases, the Supreme Court decided Kansas v. Hendricks, at -, 117 S.Ct. at 2072. The Court there upheld a Kansas statute that provides for the civil commitment of “sexually violent predators.” See Kan. Stat. Ann. § 59-29a01 et seq. Under the statute, a person convicted or charged with a violent sexual offense and suffering from a “mental abnormality or personality disorder which makes the person likely to engage in the predatory acts of sexual violence,” § 59-29a02(a), may be confined to state custody for “control, care and treatment until such time as the person’s mental abnormality or personality disorder has so changed that the person is safe to be at large,” § 59-29a07(a). Prior to Leroy Hendricks’ scheduled release from prison, the state invoked the statute to have him confined as a sexual predator. Hendricks, who had an extensive history of molesting children, challenged the act on substantive due process, ex post facto, and double jeopardy grounds. The Supreme Court rejected all three claims and held that the state’s involuntary commitment program did not constitute punishment for the purpose of ex post facto or double jeopardy. Like Ursery, Hendricks does not establish “a single ‘formula’ ” for identifying which legislative measures constitute punishment and which do not. Morales, 514 U.S. at 509, 115 S.Ct. at 1603. However, the context involved in Hendricks — civil commitment of sex offenders — is, obviously, more closely related to the context involved here than was the context of Ursery. In determining the continuing viability of Artway, therefore, we must give careful consideration to how Hendricks addressed the question of whether civil commitment is punishment. We find substantial overlap between the factors relied on in Hendricks and those that comprise the Artway test and we discern no need to abandon (or overhaul) Artway. The Court’s analysis in Hendricks begins by inquiring into “the legislature’s stated intent,” — U.S. at -, 117 S.Ct. at 2082, just as Artway directs that we begin with the legislature’s actual purpose. The Court found Kansas’ placement of the challenged provision in the probate code instead of the criminal code, and the legislature’s description of its creation as a “civil commitment procedure,” to be evidence of the legislature’s “disavow[ing] any punitive intent.” Id. at -, -, 117 S.Ct. at 2082, 2085. “Nothing on the face of the statute suggested] that the legislature sought to create anything other than a civil commitment scheme designed to protect the public from harm.” Id. at -, 117 S.Ct. at 2082. Hendricks then goes beyond the legislature’s stated intent to consider additional factors, including those factors Artway incorporates into its objective purpose prong. Like Artway’s inquiry into proportionality, Hendricks repeatedly describes how the Kansas statute is tailored to achieve its remedial purpose of protecting the public. The Court observes that prior criminal conduct is appropriately examined for the narrow evidentiary purpose of predicting dangerousness. See id. The Court also notes that Kansas “limited confinement to a small segment of particularly dangerous individuals,” id. at -, 117 S.Ct. at 2085, and that those affected individuals do not “remain confined any longer than [they] suffer[ ] from a mental abnormality rendering [them] unable to control [their] dangerousness,” id. at -, 117 S.Ct. at 2083. As the Court recognizes, “[f]ar from any punitive objective, the confinement’s duration is instead linked to the stated purposes of the commitment, namely, to hold the person until his mental abnormality no longer causes him to be a threat to others.” Id. Finally, the Court observes that the individuals are subject only to the conditions placed on any involuntarily committed person in a state mental institution and not to the “more restrictive conditions” placed on state prisoners. Id. at -, 117 S.Ct. at 2082. Hendricks, like Artway, relied heavily on history. In the Court’s view, the confinement involved is “one classic example” in a long history of measures restricting the freedom of the dangerously mentally ill — legislative initiatives which have been consistently held to be nonpunitive. Id. at -, 117 S.Ct. at 2083. The Court specifically analogized the Kansas confinement to the quarantines of those afflicted with highly contagious diseases, and recognized that it has “never held that the Constitution prevents a State from civilly detaining those for whom no treatment is available, but who nevertheless pose a danger to others.” Id. at -, 117 S.Ct. at 2084. There is also support in Hendricks for Artway’s inquiry into the relationship between a “mixed” measure’s salutary and deterrent purposes. Hendricks discusses the multiple purposes of the Kansas statute, including incapacitation of dangerous sex offenders as well as their treatment, and concludes that the statute would not constitute punishment even if providing treatment were merely an “ancillary purpose” — and not the “primary” purpose — for passing the statute. Id. This is consistent with Artway’s allowance that a measure can be non-punitive even when it does not have solely “salutary” purposes such as treatment. Though Hendricks does not explicitly discuss what Artway calls the “effects prong,” we find nothing in Hendricks inconsistent with Artway’s direction to examine what the challenged measure actually does to the affected individuals. This is not to say, of course, that Hendricks lacks implications for the application of the effects prong. The Court held that potentially indefinite civil commitment of dangerous sex predators is not punishment. This provides a new and important “fixed point” that is of great utility in determining on which side of the punitive/nonpunitive line to place community notification. Although Hendricks thus does not suggest to us that any of the considerations identified as relevant in Artway are no longer relevant to a challenge based on the Ex Post Facto and Double Jeopardy Clauses, we do discern a teaching in Hendricks that we do not discern in the Supreme Court case law preceding Artway. In the course of holding that Kansas’ Sexually Violent Predator Act “does not impose punishment,” id. at -, 117 S.Ct. at 2086, the Hendricks Court made the following cogent observation regarding the deference that must be accorded to the legislature’s judgment as to whether its action is remedial: Although we recognize that a “civil label is not always dispositive,” Allen [v. Illinois, 478 U.S. 364, 369, 106 S.Ct. 2988, 2992, 92 L.Ed.2d 296 (1986)], we will reject the legislature’s manifest intent only where a party challenging the statute provides “the clearest proof’ that “the statutory scheme[is] so punitive either in purpose or effect as to negate[the State’s] intention” to deem it “civil.” United States v. Ward, 448 U.S. 242, 248-249, 100 S.Ct. 2636, 2641, 65 L.Ed.2d 742 (1980). Id. at -, 117 S.Ct. at 2082. As we pointed out in Artway, the Supreme Court had previously required this degree of deference only in cases where the issue before it was “whether a proceeding is effectively criminal so that the procedural protections of the Fifth and Sixth Amendments must apply” in that proceeding. Artway, 81 F.3d at 1262 n. 26. After Hendricks, however, it seems clear that similar deference to the legislative judgment is required whenever legislative measures are challenged on the basis of the Ex Post Facto and Double Jeopardy Clauses. While the Hendricks Court did characterize Hendricks’ claim at one point as an “argument ... that the Act establishes criminal proceedings,” — U.S. at -, 117 S.Ct. at 2081, the issue before the Court was whether the Act imposed “punishment” for purposes of the Ex Post Facto and Double Jeopardy Clauses, and the Court’s holding was that the Act did not. Accordingly, in Artway terms, if we determine that the actual legislative purpose was remedial, we must sustain Megan’s Law against the current challenges unless its objective purpose or its effect are sufficiently punitive to overcome a presumption favoring the legislative judgment. C. Legislative Purpose As we have indicated, in Artway we addressed only whether Tier 1 registrants under Megan’s Law are subjected to punishment — that is, whether being required to register, and having the resulting disclosures available to law enforcement personnel, constitute punishment. In that context, we determined “whether the legislature’s actual purpose [when enacting Megan’s Law] was to punish.” Artway, 81 F.3d at 1264. Looking to the statute’s own statement of purpose and the scant legislative history, we found that the legislative purpose of Megan’s Law was to identify potential recidivists and alert the public when necessary for the public safety, and to help prevent and promptly resolve incidents involving sexual abuse and missing persons. We then noted that “[protecting the public and preventing crimes are the types of purposes [the Supreme Court has] found ‘regulatory’ and not punitive.” Id,.; see also De Veau, 363 U.S. at 160, 80 S.Ct. at 1154-55. We therefore concluded that