Police are mass tracking your license plates

Posted by Emory Kale
The ACLU has released documents and information on the extent to which authorities are tracking you. This is the most ubiquitous technology you may never have heard of, and it is following you everywhere.
 
My mind is officially blown. According to a recent blog post by Catherine Crump, staff attorney at the ACLU:
 
Automatic license plate readers are the most widespread location tracking technology you’ve probably never heard of. Mounted on patrol cars or stationary objects like bridges, they snap photos of every passing car, recording their plate numbers, times, and locations. At first the captured plate data was used just to check against lists of cars law enforcement hoped to locate for various reasons (to act on arrest warrants, find stolen cars, etc.). But increasingly, all of this data is being fed into massive databases that contain the location information of many millions of innocent Americans stretching back for months or even years.
 
This is what we have found after analyzing more than 26,000 pages of documents from police departments in cities and towns across the country, obtained through freedom of information requests by ACLU affiliates in 38 states and Washington, D.C. As it becomes increasingly clear that ours is an era of mass surveillance facilitated by ever cheaper and more powerful computing technology (think about the NSA's call logging program), it is critical we learn how this technology is being used. License plate readers are just one example of a disturbing phenomenon: the government is increasingly using new technology to collect information about all of us, all the time, and to store it forever – providing a complete record of our lives for it to access at will.
 
Today, we are releasing all of the documents we have received (accessible through this interactive map and this issue page) and are publishing a report, “You Are Being Tracked,” which explains what these documents say about license plate readers: what they are capable of, how they are being used, and what privacy harms they can cause if protections aren’t put in place. We’re also offering more than a dozen recommendations we think local police departments and state legislatures should follow when they pass laws about this technology.
 

The article is fascinating because this is something that has been outside of the realms of the conversation regarding the activities of the NSA, for example. This is the day to day stuff. Business as usual. 
 
A wealth of information over at the ACLU so, dig in yourselves.