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CA AG Bonta Sues El Cajon for Illegal ALPR Data Sharing

City of El Cajon and El Cajon Police DepartmentOctober 3, 2025California Attorney General

Summary

California Attorney General Rob Bonta filed a lawsuit against the City of El Cajon for unlawfully sharing Automated License Plate Reader (ALPR) data with over 100 out-of-state law enforcement agencies, violating state law that restricts such data to California public agencies. The AG is seeking a court order to halt the sharing and compel compliance with state privacy protections.

Remedy

The Attorney General requests the San Diego County Superior Court issue a writ of mandamus ordering the City of El Cajon, its Police Department, and Chief Jeremiah Larson to cease sharing ALPR data with out-of-state agencies and to comply with California law. Declaratory and injunctive relief are sought.

InjunctionDeclaratory Relief

Contract Impact

In-house legal teams should review all data sharing agreements, memoranda of understanding (MOUs), and interagency agreements involving the transfer of ALPR or similar surveillance data. Focus on clauses defining data sharing scope, geographic restrictions, compliance with state-specific ALPR laws (e.g., California's requirement that data remain within state lines), data security protocols, audit rights, and termination provisions for non-compliance. Required changes may include explicitly prohibiting out-of-state or federal transfers, mandating data localization within California, incorporating regular compliance audits, and adding indemnification or penalty clauses for violations of state privacy statutes.

Contract Search Terms

Automated License Plate Reader (ALPR) data sharingout-of-state data transfer prohibitiondata localization requirementlaw enforcement data sharing agreementCalifornia ALPR regulationssensitive location data protectionthird-party data sharing clausegovernment data sharing restrictionsprivacy compliance certificationdata retention and deletion policy

Laws Cited

California law governing ALPR data sharing

Violation Types

Entity Details

Entity

City of El Cajon and El Cajon Police Department

Also known as: City of El Cajon

Industry

Other

Official Sources

Source Evidence

Entity Name
"against the City of El Cajon over its refusal to comply with state law by sharing data pulled from Automated License Plate Reader (ALPR) systems"
Violation Types
"California law prohibits local law enforcement entities from sharing ALPR data with federal and out-of-state agencies."
Violation Types
"Sharing this data with out-of-state agencies is a violation of California law that requires California law enforcement agencies that collect ALPR data to only share that data with California public agencies."
Laws Cited
"California law requires ALPR data to remain within state lines."
Remedy Types
"Attorney General Bonta requests that the San Diego County Superior Court issue a writ of mandamus ordering the City of El Cajon, the El Cajon Police Department, and Chief Jeremiah Larson to follow California law and to cease sharing ALPR data with out-of-state public agencies. Attorney General Bonta further requests declaratory and injunctive relief."

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