After A Former Kingsport Police Officer’s Guilty Plea Last Week, The Tennessee Bureau Of Investigation Has Cited A Woman For Prostitution. Mary Mullins Arrest Stems From An Investigation Into Longtime Lt. Ralph Cline Caught On An Undercover Camera. She’s Due In Court In March. Meanwhile, Cline Pleaded Guilty To Patronizing Prostitution While On Duty In An Unmarked Cruiser. A Judge Will Sentence Him In February.