So noted former congressman Tom Davis after Roger Clemens was acquitted on all charges stemming from his congressional testimony regarding alleged steroid use. Davis was explaining to the Washington Post why he did not believe the Justice Department was obligated to prosecute Clemens even though he and Representative Henry Waxman (respectively the ranking member and chairman of the Committee on Oversight and Government Reform at the time Clemens testified before that committee) had referred the matter to the Department for investigation.
As a technical matter, Davis is certainly correct. The Justice Department is not obligated to, and does not in fact, prosecute all cases referred to it by Congress. (Arguably, the Justice Department is obligated to present all congressional contempt cases referred under 2 U.S.C. ¶ 194 to a grand jury, but it doesn’t do that either).
In the case of a congressional perjury referral such as was made with regard to Clemens, I think it is safe to assume that the Justice Department conducted a thorough investigation of whether Clemens lied before Congress when he denied ever having used steroids. After conducting the investigation, it presumably reached an independent conclusion that Clemens was lying. It seems unlikely that the Department relied on the referral letter from Waxman and Davis, particularly since that letter states: “We are not in a position to reach a definitive judgment as to whether Mr. Clemens lied to the Committee. Our only conclusion is that significant questions have been raised about Mr. Clemens’s truthfulness and that further investigation by the Department of Justice is warranted.”
It is different matter with respect to the “congressional elements” of the charges, however. Although the referral letter does not explicitly address these questions, the Justice Department would have reasonably assumed from the fact of the referral itself that Waxman and Davis believed that Clemens’s testimony was “material” to a matter within the jurisdiction of the committee, and, of course, that the committee was a “competent tribunal” engaged in the “due and proper exercise of the power of inquiry.”