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Type of alcohol contained in beverage | Ethanol |
Illegal per se law, it is an offense to operate while | Having a statutorily prohibited blood alcohol content |
Good structured field sobriety test | Divides the subjects attention |
Officer's principle decision in detection phase 2 | Instruct driver to exit |
Police officer's principle decision during detection phase 3 | Should I arrest the operator |
The word nystagmus means | Involuntary jerking off the eyes |
During the one-leg stand test the subject is told to count out loud. . . | Until told to stop |
In the walk-and-turn test, the subject is required to take nine heel-to-toe steps out and ____ Heel To Toe steps back | 9 |
The only three valid field sobriety tests | Horizontal gaze nystagmus
Walk and turn
One leg stand |
Officers principle decision during detection phase one | Do I have sufficient grounds to stop this vehicle |
Horizontal Gaze Nystagmus qualifiers | Equal pupil size
No resting nystagmus
Equal tracking |
HGN test clues | Lack of smooth pursuit
Distinct and sustained nystagmus at maximum deviation
Onset of nystagmus prior to 45 degrees |
HGN indicator | Vertical gaze nystagmus |
Distance of stimulant from nose of subject | 12-15 inches |
How long do you hold for maximum deviation | At least 4 but not more than 30 seconds |
Verbal instruction for HGN test | Put your feet together
Hands at your side
Keep head still
Look at the stimulus
Follow movement of stimulus with eyes only
Keep looking at stimulus until test is over
Do you understand |