Law enforcement.

Existing law defines those persons who are peace officers in the state, grants certain authority to those individuals and their employing entities, and places certain requirements on those individuals and their employing entities. Under existing law, federal criminal investigators and law enforcement officers are not California peace officers but are granted specified limited arrest authority in limited circumstances including when violations of state and local laws occur in their presence, when there is an immediate danger to persons or property, when detaining a person for evaluation or treatment who, due to a mental illness, is a danger to themselves or others, and when requested by a California law enforcement agency to be involved in a joint task force or criminal investigation. Existing law additionally grants peace officer status to federal employees who comply with certain training requirements, while they are engaged in enforcing state or local law on and adjacent to property owned or possessed by the United States Government, with the written consent of local law enforcement officials, as specified.