SFST Test Administration 5

Question 1

Which of the following best describes 'vertical gaze nystagmus' (VGN) and when it is relevant during an SFST evaluation?

Accepted Answer

VGN may indicate high BAC or depressant intake and is checked after horizontal testing

Answer

VGN is checked as an additional indicator after horizontal testing and may suggest a very high BAC or the influence of certain depressants.

Question 2

An officer observes a subject who is wearing 3-inch heels when asked to perform the Walk-and-Turn. The correct action is to:

Accepted Answer

Allow the subject to remove the shoes before testing

Answer

NHTSA protocol allows subjects wearing shoes with heels more than 2 inches high to remove them before performing the WAT to ensure a fair, valid test.

Question 3

During the Walk-and-Turn, the subject takes 9 steps heel-to-toe, turns, and takes 9 steps back. How many steps is the subject supposed to take in each direction?

Accepted Answer

9 steps

Answer

The standardized WAT requires 9 heel-to-toe steps forward and 9 heel-to-toe steps back along the line.

Question 4

Which of the following is a valid reason to stop a One-Leg Stand before 30 seconds have elapsed?

Accepted Answer

The subject is at risk of falling and may be injured

Answer

Officer safety and subject welfare require stopping the test if the subject is at genuine risk of falling and injuring themselves.

Question 5

When documenting SFST results, which approach best supports courtroom testimony?

Accepted Answer

Recording each specific clue observed with detailed behavioral descriptions

Answer

Specific, contemporaneous documentation of each observed clue with behavioral detail is most credible and defensible in court testimony.

(SFST) Standardized Field Sobriety Testing Certified Practice Test

(SFST) Standardized Field Sobriety Testing Certified Practice Test

SFST Test Administration 5