A probe has been launched by the TBI into allegations made by a female mental health patient against a former sheriff’s deputy.The deputy, Josh King, has resigned his post amid the allegations, his resignation accepted by Sheriff Jackie Matheny. King had worked for the sheriff’s department for about two years.His resignation came after he was presented with allegations he had violated department policy by allowing a female to ride in the front seat of his patrol car instead of in the back, caged and locked section of his unit. The female in question, however, was not an inmate but instead was being transported to a mental health facility by the officer for evaluation.