Is it possible that it OTHER reflects off-duty work? I know some cities allow their officers to work off-duty but in uniform, and the places that want to use them have to pay the city directly instead of the officer.
Overtime is usually time spent on the clock while "on-duty" - i.e. still performing their regular police duties, but hours over their standard workweek. Whereas an off-duty officer might be patrolling a bowling alley parking lot or high school football game - still in uniform, but not on "official police business".
