Three NYPD detectives and their supervisor have been stripped of their guns and badges pending an Internal Affairs investigation into a false accusation of drug dealing in the lobby of a Bronx building. In early 2009, Omar Tawdeen was arrested for allegedly selling crack cocaine to three people, and detective Francisco Payano testified that he witnessed Tawdeen deal the drugs. But Tawdeen insisted he was "innocent from day one of every single charge in that case," according to his lawyer. And during a pretrial hiring on February 9th, he was vindicated when surveillance video showed that not only didn't Tawdeen sell any drugs, but Payano wasn't even there. All the charges against Tawdeen were tossed out, and Judge Aarons told Payano he should retain a defense lawyer, sources tell the Post.