In Rhode Island, police officers may pull you over if they suspect you are driving under the influence. If they do so, they may ask you to do a series of tests. These are roadside exercises that help officers look for evidence to make a DUI arrest. Knowing the requirements of each test may help you understand what to expect during a traffic stop.
What is a field sobriety test?
Rhode Island law enforcement officers commonly use three standardized field sobriety tests developed and promoted by the National Highway Traffic Safety Administration (NHTSA). These tests help officers look for signs of impairment by checking your balance, coordination and ability to follow directions.
In Rhode Island, field sobriety tests are voluntary, meaning you may refuse them. Keep in mind that refusal may still have practical consequences. Depending on the circumstances, your refusal may influence an officer’s decision to arrest.
Walk-and-turn
In a walk-and-turn test, an officer typically instructs you to walk in a straight line, taking nine heel-to-toe steps. Afterward, you must turn in a specific way and take nine steps back. The officer notes issues such as losing your balance, straying from the line, stopping too soon or using your arms for stability.
One-leg stand
During a one-leg stand test, an officer may ask you to balance yourself on one foot and count out loud. Typically, you will be asked to count starting from one thousand. The officer watches for swaying, hopping, using your arms to help you balance yourself or lowering your foot early.
Horizontal gaze nystagmus (HGN)
In a HGN test, officers may ask you to follow a moving object using your eyes. They may use pens or small lights. Doing this helps them look for jerky eye movements that can be consistent with alcohol impairment, though this may be affected by other causes.
Protecting yourself during a traffic stop
Recognizing what officers monitor during field sobriety tests can help you navigate a traffic stop more confidently. By understanding your right to refuse, as well as the potential consequences that could come with refusal, you may have an easier time making informed decisions.

