Selective Traffic Enforcement Program (STEP)
The Selective Traffic Enforcement unit is supervised by a Lieutenant. It is responsible for investigating all fatal traffic crashes, enforcement of traffic laws in those areas which analysis indicates an elevated amount of crashes, disregarding traffic laws, administration and execution of the Motor Carrier Safety Assistance Program, special security details, and investigation of crashes involving Department vehicles when requested.

Motorcycle (Motor) Unit
The Motorcycle Unit is supervised by a Sergeant. They are responsible for investigating traffic complaint areas, Motor Carrier Safety Assistance Program enforcement, extended traffic direction detail, and police escorts.

Hit & Run Unit
Personnel in the Hit & Run Unit report directly to the supervisor of the Selective Traffic Enforcement Unit. They are responsible for the investigation of traffic crashes in which an involved party fails to report the crash or leaves the scene of the crash.

Driving Under the Influence (DUI) Task Force
The DUI Task Force is under the command of a Sergeant who reports directly to the Traffic Services Lieutenant. The DUI Task Force is responsible for enforcement of laws governing Driving Under the Influence in unincorporated Cobb County.