“There comes a point where the surveillance is so pervasive and total that it’s a misnomer to call a society free any longer.”

The computerized scanners, known as Automatic License Plate Recognition devices, instantly check for police alerts, warrants, traffic violations and parking tickets, which cops say could be an invaluable tool in thwarting crime. The Executive Office of Public Safety has approved 27 grants totaling $500,000 to buy scanners for state police and 26 local departments. The purchases are on hold while state lawyers develop a policy for the use of a common state database all the scanners would feed.