Relating to: the use of oral fluids for preliminary screening of a person suspected of operating a motor vehicle while intoxicated.

AB 681 allows law enforcement officers to use oral fluid tests (alongside breath tests) during initial roadside screening when they suspect a driver is impaired by alcohol, drugs, or controlled substances. This applies to drivers suspected of violating DUI laws (e.g., operating under the influence or while impaired). The test results help officers decide whether to arrest the driver or request further chemical testing, but cannot be used as evidence in court except to prove probable cause for an arrest. Refusing this preliminary test carries no penalty, unlike refusing a formal chemical test later.