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Vallejo police report tens of thousands of license‑plate‑reader hits; department says LPRs aid investigations
Summary
At the board’s monthly technology briefing police said automatic license plate readers generated roughly 57,000 'hot list' hits this year and more than 42,000 stolen‑plate hits; presenters said LPR data are routinely used by patrol and investigations and have helped with homicide investigations.
The Surveillance Advisory Board received the department’s monthly technology usage report, which covered drones, cell‑site simulators, automated license plate readers (LPR/ALPR), Flock Raven and other systems.
Police staff reported that, during the reporting period, the license‑plate‑reader hot list produced about 57,000 hits on vehicles of interest and more than 42,000 hits classified as stolen plates. An investigator overseeing major cases told the board LPR results are “100% useful” and said the technology has been integrated into routine patrol and investigative workflows. “I could say with confidence that license plate readers have helped solve a majority of our homicide cases,” the presenter said.
Board members asked whether the large counts include duplicate reads — for example, the same plate captured multiple times across the city — and police confirmed duplicates are included in those totals. Members also noted the department faces data‑volume challenges similar to those discussed for Raven: high numbers of alerts can exceed immediate processing capacity.
Police characterized LPRs as valuable for follow‑up and investigative leads, for tracing vehicles associated with crimes and for locating stolen vehicles or vehicles with stolen plates. No policy changes or new procurement decisions were made at the meeting; the report was provided for board review and questions.
Less critical: the department also said the monthly technology packet includes usage metrics for the drone program, cell‑site simulator, ALPR, FLOP and Raven and invited board members to submit questions if they want more detail.
