Not every city has a great public transportation system for getting people home after a night out. However, driving yourself home after a night of drinking because your designated driver took off on you won’t win over a judge. If you see those unmistakable red and blue lights in your rear view mirror after you’ve been drinking, you’ll probably have a few questions about the types of tests the officer uses to determine if you are driving over the legal blood alcohol limit. Below, you will find a discussion of field sobriety tests. Basics of Field Sobriety Tests Field sobriety tests, sometimes called roadside sobriety tests, are used to enforce DUI laws and usually precede Breathalyzer tests. A police officer typically performs a three-part field sobriety test after a traffic stop where there is suspicion that the motorist may be drunk or otherwise impaired. These tests allow an officer to observe a suspect’s balance, physical ability, attention level, or other factors that the officer may use to determine whether the suspect is driving under the influence. Officers record the suspect’s performance on a field sobriety test to be used as evidence in DUI cases; such tests generally have been upheld on appeal. The purpose of all sobriety tests is to ensure that a police officer has probable cause to arrest someone for driving under the influence. Standardized Field Sobriety Tests The Standardized Field Sobriety Test (SFST) endorsed by the National Highway Traffic and Safety Administration (NHTSA) consists of the horizontal gaze nystagmus (HGN), walk-and-turn (WAT) and one-leg stand (OLS): Horizontal Gaze Nystagmus: This term refers to the involuntary jerking of the eye that occurs naturally when the eye gazes to the side. But this jerking (or nystagmus) is exaggerated when someone is impaired by alcohol. Officers look for three indicators of impairment in each eye: inability to follow a moving object smoothly; distinct eye jerking when eye is at maximum deviation; and eye-jerking within 45 degrees of center. Walk and Turn: The purpose of this test, determined to be easily done by most unimpaired people, tests the suspect’s ability to complete tasks with divided attention. This is administered by requiring the suspect to take nine steps, heel-to-toe, along a straight line; turn on one foot; and the Where is Anaheim ?? Its is a city outside Los Angeles, in Southern California. It’s home to the Disneyland Resort, a massive complex of family-friendly, Disney-themed rides, restaurants, hotels and shops. The city’s also home to pro sports teams. The Honda Center is the indoor arena where the Anaheim Ducks hockey team plays, and Angel Stadium is the home field of the Los Angeles Angels baseball team.en return in the same manner in the opposite direction. One-Leg Stand: Suspects are asked to stand with one foot about six inches off the ground and count for 30 seconds. Swaying while balancing, using arms to balance, hopping or putting the foot down indicate possible impairment.
