What are police trained to look for when enforcing OVI (drunk driving) laws?
An officer on OVI enforcement is trained to look for various signs of drunk driving, including: 1) signs of impairment exhibited by a person while driving a vehicle (called the “vehicle in motion” phase of enforcement); 2) signs of impairment upon the initial “personal contact” with the driver; 3) signs of impairment noticeable during the “pre-arrest screening” phase, which encompasses standardized field sobriety testing and preliminary breath testing.
