Which of the following is NOT one of the three chemical tests used in OUI cases?

In OUI (Operating Under the Influence) cases, the three primary chemical tests used to determine blood alcohol concentration (BAC) are blood, breath, and urine tests. These tests provide law enforcement with scientific data to assess whether a driver is impaired by alcohol or drugs.

Saliva testing, while used in some contexts for drug testing, is not recognized as one of the standard methods for measuring BAC in OUI cases. Thus, saliva does not fit into the primary categories established for chemical tests in this context. Blood, breath, and urine tests are widely accepted and legally validated for measuring alcohol levels, making their results more admissible in a court setting for OUI cases.

The distinction is crucial for law enforcement and legal practitioners, as it informs the methods they may use during investigations and subsequent legal proceedings regarding OUI offenses. Understanding the accepted methods helps ensure that proper procedures are followed in maintaining the integrity of the testing process and the subsequent legal ramifications.