Authorities say a South Florida man told a prostitute that he was a police officer and that he would arrest her if she refused to have sex without a condom.

The Broward Sheriff's Office reports that 22-year-old Mark William Rose was arrested Wednesday and charged with impersonating a police officer in the commission of a felony and false imprisonment.

The South Florida Sun Sentinel (http://goo.gl/lXILy7 ) reports that Rose told arresting deputies he had previously used the fake officer bluff about a dozen times, with three women conceding to sex.

Rose's lawyer refuted the false imprisonment charge, saying this wasn't the first time a man had lied to a woman to have sex.

Rose was being held on $10,000 bail.