Cameron Douglas, son of actor Michael Douglas, was going to be a narc! He was busted with half a pound of meth at the Gansevoort Hotel last year and placed under house arrest, where his girlfriend then smuggled him heroin. Yesterday at a bail hearing his shrink let slip that he was only ever released to house arrest "because he was going to be an informant." The statement was stricken from the record, and his lawyers argued that he should be let go pending sentencing (in April) to undergo treatment for heroin addiction. The judge deferred a ruling, and his lawyer later stated, "Obviously, we continue to be at odds with the government."