Jacksonville DUI Field Sobriety Tests include the One-Leg Stand test. Florida DUI officers use this test to determine if a Jacksonville DUI suspect is impaired. This test is a DUI test that divides the Jacksonville DUI suspect’s attentions and judges his ability to follow instructions, balance, and count aloud. The test is divided into two stages: the instructions stage and the performance stage. During the instruction phase, the Jacksonville DUI suspect stand with his feet together and his arms by his side, while the Jacksonville DUI officer give the instructions. The Jacksonville Florida DUI officer is watching the Jacksonville DUI suspect sways or loses his balance. During the performance stage, the Jacksonville DUI suspect is required to lift one leg about 6 inches off the ground. The Jacksonville DUI suspect must stand with both legs strait, look at his foot, and count to 30 seconds. The Jacksonville DUI officer is looking for four clues: (1) swaying, (2) using arms to balance, (3) putting the foot down prematurely, and (4) hopping. If the Jacksonville DUI suspect does two of the things lifted above, the Jacksonville DUI officer will imply that he is impaired.