Effective February 1, 1971, Section 207(6) of the District of Columbia Court Reform and Criminal Procedure Act added the following sentence to subsection (j) of 24 D.C.Code § 301: “No person accused of an offense shall be acquitted on the ground that he was insane at the time of its commission unless his insanity, regardless of who raises the issue, is affirmatively established by a preponderance of the evidence.” Prior to February 1, 1971 the prosecution had the burden in criminal cases of proving criminal responsibility beyond a reasonable doubt once the defendant had raised the insanity defense. Davis v. United States,
A long time ago the United States Supreme Court defined
ex post facto
laws to include “[e]very law which alters the
legal
rules of
evidence,
and receives less, or different, testimony, than the law required at the time of the commission of the offence,
in order to convict the offender.”
Calder v. Bull,
Under the circumstances, appellant’s conviction must be reversed on ex post facto grounds.
So ordered.
Notes
. Art. 1, § 9, cl. 3 of the United States Constitution provides: “No Bill of Attainder or ex post facto Law shall be passed.”
.
See
Malloy v. South Carolina,
. We find no language in the statute or in its legislative history, and we have been cited to none, which indicates that Congress intended it to be applied retroactively.
. In view of the express intent of Congress and the obvious effect of the statute, the Government’s argument that § 207(6) provides for a mere procedural change which, applied retroactively, does not significantly alter the situation to appellant’s disadvantage may be dismissed as pure advocacy.
Compare
Kring v. Missouri,
supra
note 2, and Thompson v. Utah,
