Defendant Gilbert A. Robinson appeals his conviction for possession of child pornography in violation of 18 U.S.C. § 2252(a)(4)(B). He was sentenced to a term of imprisonment of eighteen months to be followed by three years of supervised release. Robinson argues that his rights under the Due Process Clause were violated because he did not have fair notice that his possession of the pornographic materials at issue had become illegal, and he lacked actual knowledge of the jurisdictional element of the charged offense. He also asserts that § 2252(a)(4)(B) exceeds Congress’s authority under the Commerce Clause. We affirm.
I. BACKGROUND
Section 2252(a)(4)(B), which took effect on November 29,1990, prohibits the simple possession of three or more sexually explicit photographs of minors. 18 U.S.C. § 2252(a)(4)(B). Until 1990, Congress had not declared the possession of child pornography illegal.
See United States v. Robinson,
The fifty photographs presented by the government at trial were recovered inei-dent to an April 19, 1995 search of Robinson’s home. The photographs depict boys in their mid--to late teens in nude poses'. All of the photographs are ■ color, instant photographs, and the borders of each include handwritten descriptive information about the boys, e.g., names, ages, dates on which the photographs were taken. Four of the photographs graphically depict boys engaged in sexual acts. Robinson stipulated that on the date of the search, he knowingly possessed the fifty photographs introduced into evidence. 1 He further stipulated that the fifty photographs were all taken using a Kodak instant camera and Kodak instant film, both of which were manufactured by the Eastman Kodak Company outside of Massachusetts. In light of the evidence, the jury returned a guilty verdict.
II. DISCUSSION
We review
de novo
constitutional challenges to federal statutes.
United States v. Cardoza,
A. Due Process Challenge
The Due Process Clause of the Fifth Amendment has been interpreted to require that criminal defendants be given “fair notice of the standard of conduct to which they can be held accountable.”
United States v. Maravilla,
In asserting his claim, Robinson relies substantially on
Lambert v. California,
The
Lambert
exception does not apply to the instant case. Child pornography offends the moral sensibility of the community at large. Indeed, “the child pornography laws are directly related to [this] commonly understood moral censure.”
United States v. Moncimi,
Robinson also asserts that due process requires a showing that he had actual knowledge that the photographs in question (or the materials used to produce such photographs) had been transported in interstate commerce. Section 2252(a)(4)(B) provides, in relevant part:
Any person who ... knowingly possesses 3 or more books, magazines, periodicals, films, video tapes, or other matter which contain any visual depiction that has been mailed, or has been shipped or transported in interstate or foreign commerce, or which was produced using materials which have been mailed or so shipped or transported, by any means including by computer, if—
(i) the producing of such visual depiction involves the use of a minor engaging in sexually explicit conduct; and
(ii) such visual depiction is of such conduct;
shall be punished as provided in subsection (b) of this section.
18 U.S.C. § 2252(a)(4)(B) (emphasis added). According to Robinson, the adverb “knowingly” modifies not only the verb “possesses” but also the phrase “mailed, or has been shipped or transported in interstate or foreign commerce.”
Robinson bases his statutory interpretation on
United States v. X-Citement Video, Inc.,
Robinson’s reliance on
X-Citement Video
is unavailing. The
X-Citement Video
Court required knowledge of the minority of persons used or depicted because the “presumption in favor of a scienter requirement should apply to each of the statutory elements which criminalize otherwise innocent conduct.”
We do not have the same concern with the interstate commerce element, which confers federal jurisdiction over the crime. The
X-Citement Video
Court itself distinguished age of minority from “ ‘jurisdictional fact[s]’ that enhance[ ] an offense otherwise committed with an evil intent.”
Id.
at 72-73 n. 3,
B. Commerce Clause Argument
Robinson also challenges § 2252(a)(4)(B) as beyond Congress’s authority under the Commerce Clause, citing the Supreme Court decision in
United States v. Lopez,
First, Congress may regulate the use of the channels of interstate commerce. Second, Congress is empowered to regulate and protect the instrumentalities of inter *656 state commerce, or persons or things in interstate '.commerce, even though the threat may come from intrastate activities. Finally, Congress’ commerce authority includes the power to regulate ■... those activities that substantially affect interstate commerce.
Id.
at 558-59,
Robinson contends that § 2252(a)(4)(B), like the GFSZA, can be upheld, if at all, only under category three, i.e., the regulation of activities that substantially affect interstate commerce. Against this challenge, we hold that Congress properly exercised its powers under the Commerce Clause in enacting § 2252(a)(4)(B).
Section 2252(a)(4)(B), in contrast to the GFSZA, contains an explicit jurisdictional element requiring that the visual depictions in question, or the materials used to create such depictions, be “mailed, ... shipped or transported in interstate or foreign commerce. ...” 18 U.S.C. § 2252(a)(4)(B). The jurisdictional element in § 2252(a)(4)(B) requires an answer on a ease-by-case basis to the question whether the particular possession of child pornography affected interstate commerce.
We find § 2252(a)(4)(B), viewed as a category three regulation,' to be a proper exercise of Congress’s power under the Commerce Clause. Congress enacted § 2252 based, in large part, upon its “finding that‘‘child pornography and child prostitution have become highly organized, multimillion dollar industries that operate on a nationwide scale,’ and ‘that such prostitution and the sale and distribution of such pornographic materials are carried on to a substantial extent through mails and other instrumentalities of interstate and foreign commerce.’ ”
United States v. Winningham,
III. CONCLUSION
For the foregoing reasons, we affirm the judgment of the district court.
Notes
. The appellant has moved to strike portions of the Appellee’s Supplemental Appendix. These portions include proposed exhibits which the trial judge had excluded. Because the exhibits were not relied upon to support the guilty verdict appealed from and because the government has not sought in some fashion to challenge their exclusion, they appear' to be immaterial to this appeal. We review only the materials actually relied upon below for the decisions subject to appeal. The government’s argument that the excluded materials are found in the district court record and that this material further supports its contentions are beside the point. In the absence of some showing that the disputed materials were relevant to actual decisionmaking being contested on 1 appeal, an appellate court will not review aspects of the trial court file whose admission or exclusion has not been challenged. There being no proper basis for submitting this material for our consideration, we grant the motion to strike.
. The statute provides, in relevant part:
(a) Any person who—
(1) knowingly transports or ships in interstate or foreign commerce by any means including by computer or mails, any visual depiction, if—
(A) the producing of such visual depiction involves the use of a minor engaging in sexually explicit conduct; and
(B) such visual depiction is of such conduct;
(2) knowingly receives, or distributes, any visual depiction that has been mailed, or has been shipped or transported in interstate or foreign commerce, ... or knowingly reproduces any visual depiction for distribution in interstate or foreign commerce by any means including by computer or through the mails if—
(A) the producing of such visual depiction involves the use of a minor engaging in sexually explicit conduct; and
(B) such visual depiction is of such conduct ... shall be punished as provided in subsection (b) of this section.
18 U.S.C. § 2252(a)(1) & (2) (emphasis added).
