- You never know who the Polk County Sheriff’s Office is going to net when it goes trolling for prostitutes and johns. This time, Polk’s Sheriff Grady Judd says he got one of his own guys. “We are absolutely unequivocally embarrassed, but this is a clear indication that everyone is held accountable,” said Judd. During his latest crackdown, dubbed “Operation No Tricks, No Treats,” his deputies arrested Sgt. Luis Diaz, a 17-year veteran of the force.