A Republican bill that shields police use of controversial license plate reader technology from public scrutiny, even as the sponsor claims it will prevent “government overreach” and provide oversight, took its first step toward becoming law on Tuesday.

The legislation would change state law to codify certain standards for how police can use automated license plate readers, commonly referred to as ALPRs. Senate Bill 1111 is backed by the Arizona Police Association, the state’s largest police union, and the Arizona Association of Chiefs of Police.

ALPRs, specifically those made by the company Flock Safety, have been a source of controversy, both for the wide-ranging network of cameras — the company claims to have more than 80,000 AI-powered cameras in over 5,000 communities across 49 U.S. states — and how law enforcement uses them.