Does Section 812 of the New York State Criminal Code prohibit concealment or alteration of evidence?

Ironically Section 812 did have a "loophole" which was remedied by the new law. Section 812 made one who "destroys" evidence guilty; it did not prohibit concealment or alteration of evidence as does 215.40(2). The case of People v. De Felice, 282 App.Div. 514, 125 N.Y.S.2d 80 (4th Dept. 1953) reversed a conviction under Section 812 and dismissed the indictment because the defendant had Concealed evidence, a shotgun, but had not destroyed it; in fact the gun was found by police.