Acknowledge the officer and pull over safely. Slow down, and turn on your hazard light or right turn signal. Stay in your vehicle and roll down your windows or turn on interior lights if it’s dark.

The vehicle is part of WSP’s Aggressive Driving Apprehension Team ( ADAT ), a program that’s been in place since 1998. The team uses unmarked vehicles of various makes and models — including pickups, ...

Washington State Patrol maintains a fleet of 50 unmarked cars across the state. But can they pull you over for everyday traffic violations?

State police also ordered and received seven unmarked Chevrolet Caprice Police Patrol Vehicles, which had been the Crown Victoria's main competition until General Motors discontinued the line in 1996.

Oregon State Police spokesperson Kyle Kennedy ... had last been seen in Pensacola, Florida, police said. Kraft was pulled over in his vehicle on a California freeway in 1983 after a trooper ...

Oregon State Police spokesperson Kyle Kennedy ... had last been seen in Pensacola, Florida, police said. Kraft was pulled over in his vehicle on a California freeway in 1983 after a trooper ...

In New York state last month, Gottlieb was pulled over by an unmarked vehicle with flashing lights and a siren. He apparently thought it was a police car, but the man inside murdered him.

Oregon State Police spokesperson Kyle Kennedy ... had last been seen in Pensacola, Florida, police said. Kraft was pulled over in his vehicle on a California freeway in 1983 after a trooper ...

Oregon State Police spokesperson Kyle Kennedy ... had last been seen in Pensacola, Florida, police said. Kraft was pulled over in his vehicle on a California freeway in 1983 after a trooper ...

Getty Images/iStockphoto A 17-year-old was thrown off a bridge and killed when a driver hit the disabled vehicle he was ... 140 in Klamath County, Oregon State Police said in a news release.