Reasonable Suspicion

Reasonable Suspicion drug and alcohol testing is the operational program established to enforce the Los Angeles County Board of Supervisors Policy 9.050 – Drug Free Workplace Program (A link to the policy is located below).

It is the policy of the County of Los Angeles that the use, possession, selling, or sharing of drugs, or alcohol, by employees, contract personnel, and others responsible for carrying out the County’s business while in the workplace or on duty is unacceptable because it may adversely affect the health, safety, security and productivity of the County workforce, as well as undermine public trust and confidence. As used in this policy “drug” means: a drug that is illegal under federal or California law, or a legal drug that has not been legally obtained, is being sold or distributed unlawfully, is being used for any purpose other than the purpose for which it was prescribed or manufactured, or is being used in a quantity, frequency, or manner that is contrary to the instructions of the prescribing physician or manufacturer.

This policy further prohibits such individuals, while in the workplace or on duty, from being under the influence of any substance that causes impairment or that adversely impacts their ability to safely and effectively perform their job duties.

Managers or supervisors who suspect that an employee is under the influence of drugs or alcohol must follow the process and procedures identified within the County’s Reasonable Suspicion program. Violation of any element of this policy may result in disciplinary action up to and including discharge from County service.

The Reasonable Suspicion drug and alcohol testing program is managed by the Department of Human Resources (DHR), Occupational Health Programs (OHP). If you have any questions about Reasonable Suspicion, please contact OHP staff at (213) 433-7201 or via email at

Additional support for employees is also available via the Employee Assistance Program (EAP), please click below.

Reasonable Suspicion Process

The Reasonable Suspicion Packet includes all required documents and instructions for Supervisors or Managers who witness or are informed of an employee who appears to be impaired or is exhibiting concerning behavior(s).  The documents are all in PDF format and may be completed/submitted electronically. Please do not hesitate to call or email OHP if you have any questions or concerns regarding the Reasonable Suspicion process.

Required Forms

For your convenience, we have also included separate copies of all the Required Documents below.