What is an example of field sobriety testing?

The One-Leg Stand test is a widely recognized example of field sobriety testing, specifically designed to assess a driver’s physical coordination and balance, which can be affected by alcohol consumption. In this test, the individual is asked to stand on one leg while counting, typically for a period of about 30 seconds. The purpose of this assessment is to observe if the person can maintain their balance without swaying or putting their foot down, which are indicators of potential impairment.

Field sobriety tests like the One-Leg Stand are standardized and are often used by law enforcement officers to gather evidence of impairment. The task requires both physical and cognitive skills, as the person must focus on counting while balancing, making it an effective tool for officers in determining someone's ability to operate a vehicle safely. This direct assessment of physical capabilities is a crucial part of the evaluation process in DUI investigations.

In contrast, interviewing the driver, checking vehicle registration, or asking for passenger details do not directly assess the driver's physical or cognitive impairment. These activities may be part of the broader interaction between law enforcement and the driver, but they are not considered standardized field sobriety tests.