A Davenport businessman is suing the city cops for damages, claiming detectives mishandled important evidence in his trial. A judge acquitted Michael Flynn, Junior last May of theft charges, insurance fraud and filing a false report. Police arrested him in 2000, saying he’d overstated the theft of cigarettes from his company, Flynn Beverage, so he could rip off an insurance company. Flynn told police that more than 46-hundred cartons of cigarettes had been taken in a burglary. Detectives say the theft was really a little more than 700 cartons. In his federal suit, Flynn says a surveillance video would have documented how many cartons were taken, and who took them. He says prosecutors told him police had no such evidence. But Flynn, who has since sold his business, says he found such a video in a packet of evidence that police returned to him after he was acquitted.