In a car crash or other incident involving multiple vehicles the police may investigate whether the driver of any of the vehicles is under the influence of or intoxicated by alcohol or drugs, and are not limited to investigating and arresting only the driver who was at fault in the accident, for example.
In Utah, when a car crash or other incident involving multiple vehicles occurs, law enforcement officers have the authority to investigate all drivers involved for potential impairment due to alcohol or drugs. Utah law does not restrict officers to only investigate or arrest the driver who is at fault in the accident. Instead, any driver who is suspected of driving under the influence (DUI) can be subject to investigation and arrest, regardless of their role in the incident. This is consistent with Utah's strict DUI laws, which aim to prevent impaired driving and enhance public safety. If an officer has reasonable grounds to believe a driver is intoxicated, they may conduct field sobriety tests, use breathalyzers, or other chemical tests to determine the driver's level of impairment.