Mr Giuliani had claimed that he had been attacked in a Staten Island supermarket, a claim that led to the arrest of an employee there named Daniel Gill. However, a video later obtained by the New York Post showed Mr Gill stroking Giuliani in the back, seriously undermining Mr Giuliani ‘s allegations that he had been physically assaulted and nearly demolished. The allegations were backed by Giuliani’s son, Andrew Giuliani, who is vying for the Republican nomination for governor in Tuesday’s by-elections. Prosecutors eventually dropped their charges against Mr. Gill from a second-degree assault, a felony, a third-degree assault, a second-degree harassment and a third-degree threat, all misdemeanors. Mr Gill spent more than 24 hours in police custody. On Tuesday, Mr Adams said prosecutors should turn their attention to Mr Giuliani. “I think the district attorney has the wrong person to investigate,” Adams said during an unrelated media availability in Haarlem. “False reporting of a crime is a crime. “If this video did not exist, then this person would have been accused of punching the former mayor.” Mr Adams said he was talking to police commissioner Keechant Sewell about whether Mr Giuliani’s own actions constituted a crime. “When you look at the video, the guy actually went over and stroked his back,” Adams said. “It was clear that he was not punched in the head. It was clear that it did not look like a sphere. It was clear that he was not going to fall to the ground. “ Mr Giuliani did not respond to a request for comment. The Legal Aid Society, which represents Mr Gill, did not comment immediately. “The DA office is refusing to comment pending the open case and the investigation,” said Ryan Lavis, a spokesman for Staten Island Attorney Michael McMahon. “What if we didn’t have the video?” the mayor asked on Tuesday. “This man would have been charged with a serious crime when all he did was stroke the guy in the back. “You can not impress to carry out your own agenda and you can not use the police to carry out your own agenda.”