The three (3) SFSTs that were developed by the National Highway Traffic Safety Administration (NHTSA) and are most frequently used by law enforcement are:Horizontal Gaze Nystagmus (HGN) Evaluation
HGN is an involuntary jerking or “bouncing” of the eye. Alcohol HGN is seen when the eye, gazing upon an object (such as an officer’s pen or finger), begins to lag and has to correct itself with an abrupt or jerky movement toward the direction in which the eye is moving.
Walk and Turn Test
The Walk and Turn Test is a “divided attention” test that is easily performed by most unimpaired drivers. This test requires an individual suspected of DUI to listen and follow instructions while performing simple physical movements. Specifically, the individual is asked to take 9 steps, heel-to-toe, along a straight line, then turn on one foot and return in the same manner and in the opposite direction.
One Leg Stand Test
The One Leg Stand test is also a “divided attention” test. During this test, the individual suspected of DUI is instructed to stand with one foot approximately 6 inches off of the ground and count aloud until he/she is told to put his/her foot down.
Our attorneys are trained in these procedures and understand how to attack the results of each of these SFST in order to ensure that your rights are protected.