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I've known about the controversy over license plate scanners on police cars for a long time. Until today, I'd never saw it in action or, as far as I know, been the target.

That changed on the way in to the NewsCut World Headquarters today.

At first I thought it was a Google street view car, but with the Minnesota plates, I realized quickly that it was the police, identifying everyone else on the road.

He pulled over at the split between Interstates 94 and 35E and, presumably, scanned all of the license plates of all of the cars that tried not to hit him.

I didn't feel particularly violated. But I am conflicted about another step in the surveillance society, dominated as it is with the "if you didn't do anything wrong, what's the problem?" justification.

Judd Golden, ACLU official in Boulder, Colo., has an answer. Pointing to a 

, Golden asked the Boulder City Council for 

In fact, I presume the police have a picture of me guilty of distracted driving, since I was taking a picture of them at the time. What's to prevent getting a citation in the mail at some future time based on these pictures? And is that a bad thing? I shouldn't be taking pictures while I'm driving.

Seventy-one percent of police departments in the U.S. are using the cameras

In Minnesota, the State Patrol deletes the records after 48 hours. During that time, I should probably refrain from knocking over a bank in downtown Saint Paul

No state agency regulates how the cameras are used and the Legislature 

failed in an attempt to dictate how long the records could be retained by any police agency

. St. Paul police erase records after 14 days and Minneapolis retains them for a year.

That deletion policy might satisfy privacy advocates, but it still doesn't answer the long-term question. Most every surveillance tool eventually expands. These started off as being used to find stolen cars, but in parts of the country, they're 

an integral part of an overall surveillance system to monitor everyone's movement.

 But what's the next step for them? And how will we know?

NewsCut

Bob Collins

Author

A close encounter with a police license plate scanner.

License plate scanners: When does surveillance go too far?

Go Deeper.

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