Phoenix Police Department uses Automated License Plate Readers (ALPR) including fixed pole-mounted cameras and patrol-car units. Arizona has no specific ALPR statute; data retention follows internal PPD policy and AZPOST guidelines.
Phoenix PD operates a network of ALPR cameras (Flock, Vigilant Solutions, and similar systems) on patrol vehicles and at fixed locations. Captured plate, time, and location data is checked against hot lists for stolen vehicles, AMBER alerts, and active warrants. Arizona has no specific statute regulating ALPR data retention or use, unlike California (Civil Code 1798.90) or Maine. Phoenix retention policy stores non-hit reads typically 1 year, longer if part of an investigation. The ACLU of Arizona has criticized the program for lack of audit transparency. Civil-liberties groups have challenged Flock's regional data-sharing across multiple Maricopa County agencies. Public records requests under ARS 39-121 reach some retained data.
Misuse of ALPR data is governed by internal PPD policy and AZPOST standards, with administrative discipline up to termination and potential criminal charges under ARS 13-2917 (computer tampering) for unauthorized access. Civil suits under 42 USC 1983 are possible.
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Phoenix, AZ
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