Sound Transit police are a unit of the King County Sheriff's Office. Uniformed officers routinely patrol Link trains and stations to create a safe environment. Officers also monitor car, bicycle and pedestrian traffic. Sound Transit police are King County Sheriff officers, and their uniforms say "Sound Transit Police."
Transit security officers contract with Sound Transit and are available at the stations and platforms for safety concerns and to answer questions about service, schedules or fares. Transit security officers wear uniforms with dark green tops.
Fare enforcement officers contract with Sound Transit to check fares, answer questions and offer help. Fare enforcement officers wear uniforms with blue tops.