John Augustus Rose II, a 22 year veteran of the department, was booked on suspicion of lewd acts with a child, according to a statement issued by the department.
The alleged incidents occurred between February and June of 2013 while Rose was off-duty, the statement said.
Rose was being held on $325,000 bail. He was relieved of duty Thursday without pay.
The veteran deputy was most recently assigned to the Community Oriented Policing Services (COPS) Bureau.