Police are AI cars in American Truck Simulator and Euro Truck Simulator 2. If players commit an offence in the presence of a police car (exceeding the speed limit, running the red light, colliding...), they will receive a fine. The police car will sound its siren and flash its light-bar for several seconds, as police would do in real life.
If the player commits an offence in presence of the police, the fine given is twice as high as if given by the game itself.
Some police cars exist both in a sedan and a hatchback variant.
As of Special Transport DLC, the cops will help you to stop the traffic to give ways to Escort Vehicles and your truck.
Portland Police Bureau cars in the Oregon DLC are designed wrong. SCS has instead mistakenly designed the police cars as Portland, Maine police vehicles instead of Portland, Oregon police vehicles. As well, in the Interceptor Sedan variant, the drive is also on the left side instead of the right side.
In TruckersMP, if a trucker colliding another trucker, horn or light spam, dangerous overtake, reckless driving and blocking the road in the presence of a police car driven by a server admin, they will kick out the trucker depending what they saw or getting a report by a player who is the victim or as a witness of a crash. Although, admins do sometimes use trucks or freecam instead of police cars.