Massachusetts DWI DUI OUI Field Sobriety Test Police Training Manual

— suspect utters incriminating statements

Examples of conditions that may interfere with suspect’s performance of the Horizontal Gaze Nystagmus test:

— wind, dust, etc. irritating suspect’s eyes;
— visual or other distractions impeding the test (always face suspect away from rotating lights, strobe lights and traffic passing in close proximity).

7. Taking Field Notes on Walk-and-Turn Testing?

The section on the Walk-and-Turn test appears at the top of the guide’s back side.

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The fist two clues, “cannot keep balance” and “starts too soon” apply only during the instructions stage of the test. Record the number of times each of those clues appear.

For example, if the suspect’s feet “break apart” from the heel-to-toe stance twice during the instructions stage, write “2” in the box alongside the “cannot keep balance” clue. Similarly, if the suspect never “starts too soon,” write “0” in that box. Note: Actual steps taken is for scoring purposes only. Wrong number of steps is the validated clue.

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