Defendants Thomas Gulotta, County Executive of Nassau County, Donald Kane, Commissioner of the Nassau County Police Department, Joseph Mondello, Bruce Nyman, Donald DeRiggi, Benjamin Zwirn and Lewis Yevoli, each a member of the Nassau County Board of Supervisors, and the County of Nassau appeal from a summary judgment entered in the United States District Court for the Eastern District of New York (Spatt, J.). The judgment was granted on motion of plaintiffs-appellees Eclipse Enterprises, Inc., doing business as Eclipse Comics, and Wa-ntagh Distributors, Inc., doing business as Collectors Comics (collectively with plaintiffs-appellees Eclipse Enterprises, Inc., “Eclipse”). In finding in favor of Eclipse, a publisher and a seller of trading cards, the court determined, inter alia, that Nassau County Local Law 11-1992 (the “Law”), which prohibits the sale to minors of any trading card that depicts a heinous crime, an element of a heinous crime or a heinous criminal, and is harmful to minors, is a content-based prohibition of speech and is neither necessary nor narrowly tailored to meet a compelling state interest.
For the reasons that follow, we affirm.
BACKGROUND
Eclipse Enterprises, Inc. has published several sets of trading cards that include pictures or drawings of famous criminals as well as information about their lives and the crimes they committed. These cards have been sold by set in book stores and trading card shops throughout the country since 1988. Among these card sets are “Coup D’etat,” which presents theories pertaining to the assassination of President John F. Kennedy; “Friendly Dictators,” which details U.S. support of authoritarian regimes and murderous dictators; “Drug Wars,” which discusses crimes associated with Prohibition and drug trafficking; “Crime and Punishment,” which depicts scenes from trials of heinous criminals; and “True Crime,” which presents information about serial killers and gangsters.
Local Law 11-1992, which was enacted by the Board of Supervisors of Nassau County, became operative on June 16, 1992. Section 3 of the Law states:
A person is guilty of disseminating indecent crime material to minors when, with knowledge of its character and content, he sells or loans to a minor for monetary consideration in Nassau County any trading card which depicts a heinous crime, an element of a heinous crime, or a heinous criminal and which is harmful to minors. Disseminating indecent crime material to minors shall be a Class A misdemeanor.
Definitions of the terms used in the Law are found in Section 2. A “Minor” means any person under the age of seventeen. A “Trading Card” encompasses “any card ... commonly known as a trading card.” A “Heinous Crime” is defined as “murder, assault, kidnapping, arson, burglary, robbery, rape or other sexual offense.” Finally, a card is “Harmful to Minors” if it:
1. Considered as a whole, appeals to the depraved interest of minors in crime; and
2. Is patently offensive to prevailing standards in the adult community as a whole with respect to what is suitable material for minors; and
3. Considered as a whole, lacks serious literary, artistic, political and scientific value for minors.
Section 1 provides that the legislative intent of the Law is to protect Nassau County children from materials that depict “heinous *65crimes and heinous criminals.” The County considers such materials to be “a contributing factor to juvenile crime, a basic factor in impairing the ethical and moral development of our youth and a clear and present danger to the citizens of Nassau County.” Section 1 further provides that the County has an “exigent interest” in protecting its children by “preventing the distribution to children of material deemed harmful to children.” It concludes that when “cards which depict heinous crimes and heinous criminals and which appeal to the depraved interest of minors in crime are disseminated to our youth, they are harmful.”
Eclipse initiated the action giving rise to this appeal pursuant to 42 U.S.C. § 1983, seeking a judgment declaring the Law unconstitutional under the First, Fifth and Fourteenth Amendments of the United States Constitution and Article I, Sections 6, 8, and 11 of the New York State Constitution. In the complaint, Eclipse sought a declaration that the Law is invalid on its face, an injunction against the enforcement of the Law, money damages and attorneys’ fees. Both parties moved for summary judgment. On November 12, 1998, the district court denied both motions for summary judgment without prejudice and subject to later renewal, and ordered that an evidentiary hearing be held before a magistrate judge. See Fed.R.Civ.P. 43(e).
Accordingly, in March of 1994, an eviden-tiary hearing was held before Magistrate Judge Michael L. Orenstein, who was directed by the district court to consider the following:
Whether Nassau County Local Law 1992 is narrowly tailored, i.e., employs the least restrictive means available, to serve the County’s compelling interest in providing for the well-being of minors and otherwise serving the legislative intent underlying the statute.
At the hearing, Eclipse presented a number of witnesses, including Catherine Yronwode, the editor-in-chief of Eclipse Enterprises, Inc., who testified regarding the long history of crime trading cards and provided details about the Eclipse crime cards in question; Donald Parker, a retired Nassau County high school social studies teacher, who testified about books and materials he used in class containing information about violent crime; and Martha Harris, a Nassau County public librarian, who testified as to the many books containing descriptions and depictions of crimes that are available to Nassau County’s young people.
Eclipse also presented several expert witnesses, including Dr. Joyce Sprafkin, a clinical psychologist who has published several articles on the effects of television (“TV”) violence on the behavior of children; Dr. Jonathan Freedman, whose background is similar to that of Dr. Sprafkin; and Dr. Fred Berlin, a psychiatrist who specializes in psychotic criminal behavior and who has treated numerous violent adolescents. Freedman testified that TV violence studies do not provide strong evidence that TV violence causes criminal behavior or aggression and that TV is a far more powerful medium than trading cards. Sprafkin and Berlin testified that they had never evaluated a child who exhibited aggression or violence as a result of being exposed to crime trading cards. Both Freedman and Berlin testified that there is no research demonstrating that such cards are harmful to children. Additionally, Berlin testified that the environmental risk factors he had identified as contributing to adolescent criminal behavior included child abuse, drugs, alcohol, and gang membership.
The County presented the testimony of Dr. Sandra Kaplan, a pediatrician and psychiatrist; Miriam Miedzian, who holds a doctorate in philosophy and a masters degree in clinical social work; Supervisor Gregory Peterson, one of the authors of the Law; Gra-ceann Smigiel, a victims’ rights advocate; and two clergymen, Rabbi Mare Gellman and Monsignor Thomas Hartman. Kaplan, Mied-zian, Smigiel, Hartman and Gellman all testified that, in their opinions, the trading cards in question glorify criminals and trivialize their crimes. Kaplan and Miedzian added that because of this glorification, children would be inclined to imitate the crimes depicted on the cards. However, Kaplan, Miedzian, Hartman and Gellman all admitted that they knew of no studies connecting crime trading cards or any other reading *66material to violent behavior in children and that they knew of no particular incidents of violent behavior in children that could be attributed to crime trading cards.
Peterson testified that, through personal experience and conversations with the community, he and the rest of the Board of Supervisors found that the cards had no socially redeeming value, and that the cards contributed to juvenile crime. However, Peterson also admitted that the Board’s conclusions were based upon sheer surmise, and that he was unaware of any studies or actual criminal incidents in which the crime trading cards had been linked to juvenile crime.
In October of 1994, the magistrate judge issued a Report and Recommendation finding the Law unconstitutional. He determined that “speech which contains depictions of crime or violence is not considered obscene and thus is accorded the protection of the First Amendment.” He also found that the Law is a content-based restriction on speech that fails to survive strict scrutiny analysis and that it is both vague and overbroad. In finding that the Law failed the strict scrutiny test, the magistrate judge observed that “no credible or empirical evidence was presented from which this Court could conclude that the trading cards cause juvenile crime or impair moral and ethical development.” In October of 1995, the County filed objections to the Report and Recommendation. In response to the objections, Eclipse renewed its motion for summary judgment.
On September 26, 1996, the district court issued a Memorandum of Decision and Order in which it “determined that speech containing or depicting acts of violence is safeguarded by the First Amendment”, and in which it adopted the magistrate judge’s Report and Recommendation insofar as the Report and Recommendation determined that (1) the Law “is a content-based restriction”, and (2) “Nassau County Local Law 11-1992 is unconstitutional because it is not narrowly tailored to meet a compelling state interest.” On December 12, 1996, the district court issued an order granting summary judgment in favor of plaintiffs and declaring the Law invalid on its face under the First Amendment. The district court also permanently enjoined enforcement of the Law and awarded fees and costs to Eclipse. This appeal followed.
DISCUSSION
A. Content-based Restriction on Speech
If speech subject to regulation is of the protected category, then the regulating 'statute must pass strict scrutiny if the regulation is content-based, or a less rigorous examination if it is content-neutral. Accordingly, when examining the constitutionality of a statute restricting speech, the threshold determination is whether the speech is of a protected category, and, if so, whether the statute, taken as a whole, is content-based or content-neutral. The Supreme Court historically has confined the categories of unprotected speech to defamation, fighting words, direct incitement of lawless action, and obscenity. See R.A.V. v. City of St. Paul, 505 U.S. 377, 382-83, 112 S.Ct. 2538, 2542-43, 120 L.Ed.2d 305 (1992)(“[This] limited categorical approach has remained an important part of our First Amendment jurisprudence.”). We decline any invitation to expand these narrow categories of speech to include depictions of violence. We therefore conclude that the Law regulates protected speech and turn to the question whether the regulation is content-based.
Content-based regulations, as the name implies, restrict speech because of its content. See generally Turner Broadcasting Sys., Inc. v. FCC, 512 U.S. 622, 642-43, 114 S.Ct. 2445, 2459-60, 129 L.Ed.2d 497 (1994). Content-neutral regulations, by contrast, are promulgated “without reference to the content of the regulated speech.” Madsen v. Women’s Health Ctr., 512 U.S. 753, 763, 114 S.Ct. 2516, 2523, 129 L.Ed.2d 593 (1994) (quoting Ward v. Rock Against Racism, 491 U.S. 781, 791, 109 S.Ct. 2746, 2753, 105 L.Ed.2d 661 (1989)).
The County argues that the district court erred in finding that the Law is content-based, In particular, it argues that the Law is content-neutral. The district court, however, properly concluded that the Law specifically targets the description of heinous crimes or heinous criminals in trading cards *67and, therefore, is content-based. Eclipse Enterprises, Inc. v. Gulotta, 942 F.Supp. 801, 808 (E.D.N.Y.1996). The Law focuses on the information contained in the trading cards. Accordingly, in order for the Law to be upheld, it must survive strict constitutional scrutiny.
B. Strict Scrutiny
A content-based restriction on speech is presumptively invalid. See R.A.V., 505 U.S. at 382, 112 S.Ct. at 2542; see also City of Renton v. Playtime Theatres, Inc., 475 U.S. 41, 46-47, 106 S.Ct. 925, 928-29, 89 L.Ed.2d 29 (1986) (“This Court has long held that regulations enacted for the purpose of restraining speech on the basis of its content presumptively violate the First Amendment.”). Accordingly, the County must show that the Law “is necessary to serve a compelling state interest and that it is narrowly drawn to achieve that end.” Perry Educ. Ass’n v. Perry Local Educators’ Ass’n, 460 U.S. 37, 45, 103 S.Ct. 948, 955, 74 L.Ed.2d 794 (1983) (citation omitted). The First Amendment thus imposes a high standard of precision on legislative efforts to regulate the content of speech.
There is no dispute that the County has a compelling interest in protecting the psychological well-being of minors and in combatting juvenile crime.1 However, the County argues that the district court erred in finding that the Law was neither necessary nor narrowly drawn to protect the County’s youth and to combat juvenile crime. In particular, the County claims that it had the right to enact the Law based upon “experience, knowledge and common sense” in the absence of any empirical proof that the Law would serve any of the County’s articulated interests.
The Supreme Court has held that the government must present substantial supporting evidence in order for a regulation that threatens speech to be upheld. Specifically, the Court has stated that speculation or surmise is insufficient:
When the Government defends a regulation on speech as a means to ... prevent anticipated harms, it must do more than simply posit the existence of the disease to be cured. It must demonstrate that the recited harms are real, not merely conjectural, and that the regulation will in fact alleviate these harms in a direct and material way.
Turner, 512 U.S. at 664, 114 S.Ct. at 2470 (quotation and citation omitted).
In the present case, the Nassau County Board of Supervisors patterned the Law’s definition of “harmful to minors” after the standard for obscenity that the Supreme Court delineated in Miller v. California, 413 U.S. 15, 93 S.Ct. 2607, 37 L.Ed.2d 419 (1973). The Nassau County Board of Supervisors simply adapted the Miller standard to minors and to violence. However, this was not a sufficient measure to shield the Law from a successful constitutional challenge, because the standards that apply to obscenity are different from those that apply to violence. Obscenity is not protected speech. See generally Miller v. California, 413 U.S. 15, 93 S.Ct. 2607, 37 L.Ed.2d 419 (1973); Ginsberg v. New York, 390 U.S. 629, 88 S.Ct. 1274, 20 L.Ed.2d 195 (1968).
For the purposes of this opinion, we do not find it necessary to determine whether carefully delimited and properly tailored restrictions on distribution of non-obscene but otherwise harmful speech to minors, especially younger minors, can ever pass the strict scrutiny test. See Ginsberg v. New York, 390 U.S. 629, 88 S.Ct. 1274, 20 L.Ed.2d 195 (1968); Reno v. American Civil Liberties Union, — U.S.-,-, 117 S.Ct. 2329, 2341, 138 L.Ed.2d 874 (1997). Suffice it to say, we do not find support in the record *68here for the conclusion that a prohibition on the sale of crime trading cards is a necessary or effective way to serve the compelling state interests articulated by defendants-appellants.
Other than contested studies concerning TV violence, the conclusory and contradictory testimony of its own experts, and conclu-sory testimony of community activists, the County did not provide any support for its contention that the crime trading cards are either harmful to minors or contribute to juvenile crime. Indeed, the County’s own experts as well as Supervisor Peterson — one of the drafters of the Law — all admitted that they knew of no studies or actual occurrences where crime trading cards were determined to be a factor in juvenile violence. Peterson also admitted that the Law was drafted on the basis of surmise. Eclipse’s experts testified that they knew of no study or case where crime cards had been linked to juvenile crimes. These experts also testified that TV violence research was inconclusive and unreliable as it related to juvenile violence or aggression. Because TV is a more vibrant medium than trading cards, the experts indicated that such research could not, in any event, provide support for the proposition that crime trading cards, even those that glorify crime and minimize its consequences, cause young people harm or increase the risk of juvenile violence.2
Moreover, there has been no showing why trading cards should be singled out for regulation in preference to other material that is no less noxious. For example, books found in the County library and, at least according to one teacher, used in the classroom, contain descriptions of crimes and criminals no different from the information and depictions found in the crime trading cards. The First Amendment imposes a high standard of precision on legislative efforts to regulate content-based speech, and the Law under scrutiny here simply does not meet that standard. We hold that the Law is unconstitutional under the First Amendment because it is neither narrowly tailored nor necessary to protect Nassau County’s young people.
CONCLUSION
For all of the above reasons, we affirm the judgment of the district court to the extent that it determined that the Law is a content-based restriction on speech that does not survive strict scrutiny.
. Eclipse does not challenge the finding of the district court that these are compelling state interests. See Brief for Appellees at 29. As the Supreme Court stated in New York v. Ferber, 458 U.S. 747, 756-57, 102 S.Ct. 3348, 3354-55, 73 L.Ed.2d 1113 (1982), ”[i]t is evident beyond the need for elaboration that a State’s interest in safeguarding the physical and psychological well-being of a minor is compelling” (quotation and citation omitted). See also Schall v. Martin, 467 U.S. 253, 264, 104 S.Ct. 2403, 2410, 81 L.Ed.2d 207 (1984) ("The legitimate and compelling state interest in protecting the community from crime cannot be doubted.”) (quotation and citation omitted).
. Notably, the crime trading cards merely contain pictorial depictions of the criminals and an abridged description of their lives and criminal activity. By contrast, the TV violence studies were based on active, and often graphic, violence.