I spend a fair amount of time on the highway. I have a fifty-plus mile round trip commute every day, plus need to take the highway to get to the fun stuff. Motorcycling for pleasure also tacks on more road time. Add this all together plus my propensity to, uh, push boundaries and you develop a need to identify unmarked police vehicles very quickly.

Here a few ways to tell if that Crown Victoria in front or behind of you is an old lady blabbing on her mobile phone, or an unmarked trooper getting ready to cite you for reckless driving.

First off, let’s make the distinction between an unmarked police vehicle and an undercover police vehicle. An unmarked car is one that law enforcement in your area would normally operate, except it doesn’t have any outward (obvious) signs of being a cop car. It won’t have reflective paint with your city / county / state on it, or a bar of emergency lights on the top. Here in Virginia, all marked cars have ram bars on the front, unmarked variants will not. Good examples of an unmarked car here in Virginia is the Crown Vic or Chevy Malibu. Instead of being white with yellow and red reflective paint and county crests, an unmarked county Crown Vic may be dark silver, black, or maroon. An undercover vehicle, on the other hand, can be any type of vehicle. Some are seized by the county and repurposed. I don’t think I’ve ever seen an undercover car make a traffic stop, but I guess if you ran from law enforcement you might encounter some this way.

Unmarked cars always have:

  • Dual exhaust. Some consumer variants may only have one exhaust (Chevy Malibu, for example) but can also have dual exhaust. If the car in front of you has a single exhaust pipe coming out of the back, you’re off the hook.
  • Standard license plates. Unmarked cars will not have a breast cancer awareness plate, horse lover plate, SR-71 plate, or any of the other hojillion special plates offered by the Commonwealth.

Unmarked cars will never have:

  • A dealer’s name on the back. If you see “PEARSON FORD” on the back of a Crown Vic, rest assured that’s a civilian car.
  • A box of Kleenex, stuffed animal, or gold fist air freshner in the back window. Unmarked cars are tidy in the back in case of prisoner transport (except for a light bar, see below).
  • Aftermarket wheels or wheel covers. Spinning donks are not departmental issue.
  • Limo tint on the rear window. Some unmarked cars have slightly tinted windows, so don’t go by this attribute alone.
  • Door lock keypads above the driver’s side door handle.
  • Anything dangling from the rear view mirror.
  • Any window or bumper stickers of any kind except for neighborhood watch and/or D.A.R.E.
  • A Mercury symbol on the hood.
  • An arm out of the window. At least, I’ve never seen an officer doing “4/65″ air conditioning before.

Unmarked cars may have:

  • No passenger in the front, but one in the back. Be very suspicious, as this could be an officer transporting a suspect.
  • A passenger in the front. It is rare for a trooper to travel with a partner, but it could be a veteran and a rookie, or someone on a ride-a-long.
  • A light bar in the rear window.
  • A bunch of tall antenna mounted either on the trunk lid or roof.

Usage: add up the attributes possessed by an unmarked car, then subtract any civilian attributes. This is a more cautious approach than just looking for civilian signs, but it’s better to be safe than sorry. When in doubt, assume the vehicle in question belongs to law enforcement.

Example: I was on the highway, approaching a dark gray Crown Victoria. I slowed down to assess if the vehicle was unmarked or civilian. There was a light bar in the rear window and two tall antenna on the back. However, the vehicle only had one exhaust. I sped up and passed the car, and looked at the plate as I went by. The vehicle belonged to a volunteer firefighter. Instead of the white and blue strobes found on a trooper’s light bar, the firefighter’s light bar had amber lights instead. Not law enforcement.

Night time detection is more advanced, and you have to rely on headlight and tail light shape more than anything else. This also means that by the time you can discern make and model, the officer will have already paced you and/or hit you with a detection device. If a vehicle approaches you rapidly, assume it is a law enforcement officer and move over. You can still evaluate an unmarked car if you approach from the rear.

I am surprised at how many people don’t pay attention and pass an unmarked over the legal limit. What surprises me more is when nothing happens to the speeder, but I have also seen people get pulled over right in front of me for “buzzing” an unmarked. The next time you’re on the road, try to spot as many unmarked law enforcement vehicles as you can.

What unmarked vehicles are typically driven in your state or country?

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