SFST Evaluation Factors 2

Question 1

During the Walk-and-Turn test, which clue involves the suspect failing to maintain heel-to-toe contact by more than half an inch?

Accepted Answer

Misses heel-to-toe

Answer

Missing heel-to-toe contact by more than half an inch is one of the eight scored clues on the Walk-and-Turn test.

Question 2

When administering the HGN test, how many passes should the officer make during the check for distinct and sustained nystagmus at maximum deviation?

Accepted Answer

Two passes, holding each eye at maximum deviation for at least 4 seconds

Answer

The officer makes two passes, holding the stimulus at maximum deviation for a minimum of 4 seconds per eye to check for sustained nystagmus.

Question 3

A suspect with a prosthetic leg requests to perform the One-Leg Stand. What is the officer's recommended course of action?

Accepted Answer

Administer an alternative non-balance test

Answer

Suspects with prosthetic legs should not perform balance-based tests; officers should use alternative methods or document the limitation.

Question 4

Which factor can cause a false positive for Vertical Gaze Nystagmus (VGN) unrelated to drug impairment?

Accepted Answer

High doses of depressants or dissociative anesthetics only produce VGN

Answer

VGN is typically associated with high blood alcohol concentration or certain drug categories like dissociative anesthetics, not common environmental factors.

Question 5

On the One-Leg Stand, the clue 'puts foot down' is scored when the suspect:

Accepted Answer

Lowers the raised foot to the ground before the officer says to stop

Answer

Putting the foot down before being told to stop is a distinct scored clue on the One-Leg Stand test.

(SFST) Standardized Field Sobriety Testing Certified Practice Test

(SFST) Standardized Field Sobriety Testing Certified Practice Test

SFST Evaluation Factors 2