UT HB0421

Increases penalties for leaving the scene of an accident (hit and run) when the operator has prior convictions for the same offense or driving under the influence within the past 10 years

First-time property damage hit and run remains a class B misdemeanor; elevates to class A misdemeanor with one prior conviction, and to third degree felony with two or more prior convictions

Hit and run involving injury becomes a third degree felony (up from class A misdemeanor) when the operator has prior DUI convictions or the accident causes serious bodily injury; becomes second degree felony when causing death

Establishes mandatory minimum sentencing requirements including jail time (2-20 days depending on offense level), fines ($700-$800 minimum), and allows courts to order substance abuse screening, treatment, and participation in 24-7 sobriety programs

Creates an affirmative defense allowing reduced charges if the accused provides a negative chemical test for alcohol or drugs within 12 hours (breath) or 30 days (hair) of the violation