The Commonwealth is divided into 11 State Police detective units that work out of various district attorneys' offices.

The detective units also investigate many other major crimes and serious incidents.

We had foot patrol, anticrime, narcotics and detective units.

Because they are on the lower end of the detective unit, they must prove themselves time and time again, intelligence sometimes being their most powerful weapon.

The show follows detective units in the following cities:

The First 48 has featured or plans to feature detective units in the following North American cities:

The officer, Robert Bonds, who was 27 years old, disappeared while on temporary assignment with the department's detective unit.

We're calling in a special detective unit," he said, narrowing his eyes at me.

A special detective unit was brought in to lead the police investigation.

Plain clothes and detective units (local crime, case investigation, tactical team)