Welcome to the Orange County Sheriff-Coroner Department OC Crime Lab (OCCL) public web site. The OCCL is a Division of the Sheriff-Coroner Department and is administered through a cooperative partnership of the Sheriff-Coroner, the District Attorney, and the CEO of the County of Orange, California.  In addition to knowledge about OCCL, this site provides the following public services:


  • Blood Alcohol results from DUI arrest samples taken in Orange County. Results may be retrieved via this website.
  • Breath Alcohol results from DUI arrests in Orange County.
  • Breath Instrument records for attorneys.

From the Director of the OC Crime Lab

Welcome to the OCCL web site. OCCL provides all public law enforcement agencies in Orange County with services for the recognition, collection and evaluation of physical evidence from crime scenes. OCCL is the only full-service, internationally accredited laboratory providing forensic analyses to all law enforcement and fire protection agencies in Orange County. The Division employs over 150 staff members, housed in a modern 100,000 square foot facility, serving the over 3 million residents of Orange County.


The OCCL laboratory is a nationally recognized leader in the forensic science community. For example, we were the first local law enforcement DNA lab in the Western United States, we began the first local automated fingerprint identification system in California and we are leading the way in DUI enforcement with the introduction of portable breath alcohol testing devices.


Our forensic scientists and specialists, supported by a dedicated and hardworking support staff, are skilled and knowledgeable experts using their talents in various forensic science specialties to serve the needs of the criminal justice community.


The Cooperating Department Heads and I are extremely proud of the hard work and dedication that the OCCL staff provides to bring nationally recognized quality forensic services to the citizens of Orange County. Please feel free to let me know if there is anything we can do to improve our service to you.


Mission Statement of the OC Crime Lab

To serve the criminal justice needs of Orange County by applying sound scientific principles to the collection, evaluation and interpretation of physical evidence.


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