Authorizes a city, county, town, port district, or any other taxing district to institute mandatory drug testing after a traffic collision or shooting and random drug testing for all peace officers employed by it, after approval by the voters.

Provides that random peace officer drug testing imposed pursuant to this act must conform to certain requirements.

Provides that drug testing pursuant to this act must be carried out within the terms of a written policy that has been distributed to all peace officers subject to the policy.

Provides that the drug test results obtained pursuant to this act must be treated as sensitive information and be released only to persons within the agency who have senior administrative personnel authority and to their immediate staff.