Who’s tracking Arizona drivers through Flock cameras? Often, it’s police from other states.

Records obtained by the Arizona Mirror show Maricopa County Sheriff's Office and Lake Havasu Police shared Flock license-plate camera data widely, with the Houston Police Department alone responsible for 31% of all searches on Lake Havasu's system in one month, more than every in-state agency combined. MCSO shared its ‘hotlists’ with 77 outside agencies including Customs and Border Protection, the Secret Service, a Nevada school district and Nevada's DMV.

Both agencies say they've now restricted data sharing to Arizona agencies only, with Lake Havasu implementing the change this month. MCSO could not explain hotlists named ‘Meth Jungle,’ ‘All’ and ‘Salty,’ nor why 35% of organizations receiving its data were listed as ‘organization not found,’ and pointed inquiries to Flock, which did not respond.

MCSO deputies ran over 13,000 searches from November 2024 to August 2025, hitting individual cameras more than 100 million times, while Arizona cities including Chandler and Surprise have canceled Flock contracts entirely over misuse concerns, including one officer caught tracking his own wife.

The full dispatch is available from the source below.