ILLINOIS (WCIA) -- Illinois Secretary of State Alexi Giannoulias has "immediately ordered" the largest automatic license plate reader (ALPR) system in the U.S. to shut off access to a federal agency. Giannoulias said this comes after an audit by his office found that a federal agency had accessed Illinois license plate cameras to "surveil drivers."

On Monday, Giannoulias said his office had recently learned that U.S. Customs and Border Protection gained access to Illinois' license plate camera data. Giannoulias added that this violates a state law his office initiated.

Flock Safety operates the largest ALPR system in the nation. In June, Giannoulias' office announced it would audit Flock Safety data sharing practices with several law enforcement agencies.

According to Giannoulias, the a

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