In some cases nationwide, suspects have been found guilty for merely being within a few feet of a car and in possession of the keys. Other cases, or States, require that the suspect actually be driving the vehicle. Utah tends to be more in the middle. One is the infamous breathalyzer test. Everyone is affected by alcohol differently.
Some people can become impaired after one beer.
But nearly all cases of DUI are proven in Utah with a BAC test. Officer Nye handles all of these cases with zero tolerance. You must give your correct name, date of birth, and address to an Officer upon request. Basically anything that explodes or shoots high in the the air. Drinking to the point where an Officer determines that you are a danger to yourself or others.