After a nonjury trial, appellant was convicted of exhibiting an obscene motion picture in violation of D.C.Code 1972 Supp., § 22-2001. Appellant contends that there must be a reversal because, among other things, there was no evidence that the film exceeded community standards and the court found there was no community standard, national or otherwise.
After the arresting officer testified, the film involved was introduced into evidence and viewed by the court, after which the government rested its case. Appellant’s motion for judgment of acquittal was denied on the ground that the court found the movie to be “hard-core pornography” 1 *24and concluded the government had carried its burden of proof “thus far.”
An expert witness then testified for appellant2 to the effect that, in his opinion, the film did not violate contemporary national community standards. The government offered no rebuttal testimony that the film violated national community standards, stating:
The Government has anticipated expert witnesses in this case. We are very frank — in our anticipation of what they will say — we are not prepared to rebut them and have a battle of experts because that will not solve anything for the Court either, your Honor. It would be no easier for the Court to decide on the basis of conflicting experts than it would on the basis of the Court’s own ability and — expert witness.
Finding that the film was hardcore pornography, and was shown knowingly, the court entered a judgment of guilty. In so doing, the court stated, “I agree with virtually everything the [expert witness] said.” The court further stated, “[I]f I had not found this to be hard-core obscenity, I would have had to find Mr. Hermann not guilty because there is no question in my mind that there [are] no national standards nor are there any community standards.” 3
It is apparent that the procedure in this case does not meet the requirements clearly laid down by this court in Parks v. United States, D.C.App., 294 A.2d 858 (1972). There we held that where the court rules at the end of the government’s case that the material is obscene per se and the defendant introduces evidence that it does not exceed community standards, the trial court’s “finding of obscenity per se evaporates, much as a rebuttable presumption does, and the burden of proceeding shifts back to the Government to prove beyond a reasonable doubt a violation of contemporary national community standards.” Parks, supra, at 860.
Obscenity per se, by definition, relieves the government from offering any evidence of community standards to make a prima facie case.4 Parks, however, requires reversal in this case because the government, in the face of evidence presented by the defense, offered no rebuttal evidence regarding community standards. It is going far, as it is, to permit the government, in a criminal case, to forego proof of a required element of an offense due to the gravity of the government’s evidence. Three elements must be proved before material or a performance can be found obscene: it must (a) appeal to a prurient interest in sex, (b) be utterly without redeeming social value, and (c) violate contemporary national community standards. Memoirs v. Attorney General of Massachusetts, 383 U.S. 413, 86 S.Ct. 975, 16 L.Ed.2d 1 (1966); Jacobellis v. Ohio, 378 U.S. 184, 84 S.Ct. 1676, 12 L. Ed.2d 793 (1964); Roth v. United States, 354 U.S. 476, 77 S.Ct. 1304, 1 L.Ed.2d 1498 (1957).
Since this is a criminal prosecution in the First Amendment area and because of the constitutional requirement that each element be proved beyond a reasonable doubt, and considering that the government is being given the benefit of a shortcut in *25proof (as to “community standards”), when a defendant introduces evidence on “national community standards” the burden shifts hack to the government and it must offer rebuttal evidence on this score or suffer an acquittal.
Parks does not actually create a presumption, let alone one on the footing of the sanity presumption to which the concurring opinion adverts. Such presumptions as those are based upon the probabilities of human experience. See generally AALS, Selected Writings on the Law of Evidence and Trial 1010-1067 (1957). But the reaction of any given trial judge to whether a particular photograph or film is obscene per se is not of this derivation. A judgment on this might vary from judge to judge depending upon their backgrounds and outlooks.
This is why, like it or not, there is sometimes a need for expert testimony. More than a decade ago, the late Justice Frankfurter pointed out that the interpretation of contemporary community standards
. [ojught not to depend solely on the necessarily limited, hit-or-miss, subjective view of what they are believed to be by the individual juror or judge. It bears repetition that the determination of obscenity is for juror or judge not on the basis of his personal upbringing or restricted reflection or particular experience of life, but on the basis of “contemporary community standards.” Can it be doubted that there is a great difference in what is to be deemed obscene in 1959 compared with what was deemed obscene in 1859? [Smith v. California, 361 U.S. 147, 165—166, 80 S.Ct. 215, 225, 4 L.Ed.2d 205 (1959), (Frankfurter, J., concurring).]
The thrust of his opinion was that defendants have a right to introduce expert testimony. Here, however, we are only concerned that sufficient evidence is adduced to establish obscenity. But despite a different focus, the primary consideration is the same.
There is no external measuring rod for obscenity. Neither, on the other hand, is its ascertainment a merely subjective reflection of the taste or moral outlook of individual jurors or individual judges. [Smith v. California, supra, at 165, 80 S.Ct. at 225.]
A recent decision by the United States Court of Appeals for the First Circuit, United States v. Palladino, 475 F.2d 65 (1973), went further and held expert testimony to be constitutionally required in obscenity cases. This decision recognized that expert testimony will not cure the difficulties of determining whether certain material is obscene. Nevertheless, concluded the court, neither it nor juries could adequately assess allegedly obscene material without the aid of expert testimony. Palladino, supra, at 72-74.
Although we think that expert testimony would often substantially assist trial court determinations regarding obscenity as well as our own independent review on appeal, we do not require expert testimony as a matter of course to establish the Roth-Memoirs elements in every obscenity case. See Smith v. California, supra, 361 U.S. at 172, 80 S.Ct. 215 (Harlan, J., concurring). But while we understand the lack of appetite for a “battle of experts,” that choice in many cases may be preferable to the choice with which the concurring opinion presents us. See United States v. Palladino, supra, at 75.
Finally, although this decision is controlled by Parks, the recently adopted doctrine of obscenity per se may well bear further examination in the future before it becomes entrenched.5 As matters stand, *26the doctrine expressly relieves the government of its burden to introduce any evidence beyond the material (or film) itself to show that it violates national community standards unless the defense introduces such evidence. Furthermore, as a practical matter, little or no evidence need be introduced to establish the other two elements of obscenity under the Roth-Memoirs test, supra. It is difficult to visualize how such a perfunctory showing can establish each element of the offense beyond a reasonable doubt (In re Winship, 397 U.S. 358, 90 S. Ct. 1068, 25 L.Ed.2d 368 (1970)), much less establish that the material falls outside the protection of the First Amendment.
Reversed and remanded for a new trial.6
. This is still another in a line of degrading, revolting movies depicting, among other things, multi-couple sexual acts of every description.
. Appellant also testified in his own behalf but his testimony is not material to our disposition of the ease.
. This conflicts with Jacobellis v. Ohio, 378 U.S. 184, 84 S.Ct. 1676, 12 L.Ed.2d 793 (1964), among other decisions, where the Supreme Court defined the term community standards as meaning national community standards; and, consequently, it is incorrect to conclude there are no national standards as the Supreme Court has made this a matter of proof at trial.
.Parks v. United States, D.C.App., 294 A.2d 858 (1972); Wilhoit v. United States, D.C.App., 279 A.2d 505 (1971); Kaplan v. United States, D.C.App., 277 A.2d 477 (1971), petition for cert. filed, 40 USLW 3109 (U.S. Sept. 21, 1971) (No. 71-40); Morris v. United States, D.C.App., 259 A.2d 337 (1969).
. The Supreme Court has heard argument and has for decision seven obscenity cases, in eight more cases certiorari has been granted but argument is pending, and in more than fifty cases certiorari is still pending. It is reasonable to expect a major decision from the Supreme Court resolving some of the uncertainties in this area before the Court’s term ends a few months from now.
. The government is entitled to a new trial since the judgment here was entered prior to our decision in Parks v. United States, supra.