ALPRs are not ordinary cameras. Attached to police cruisers, or fixed on telephone poles or other stationary places, the cameras snap an image of nearly every license plate they encounter. The device produces a file for each image captured, which includes searchable text displaying the time, date and GPS location of the car when and where the plate was ‘read’. This information is fed into a database, where it can be shared with other agencies and databases, and “mined” or analyzed.
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