DUI AND SFST EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026
How many clues are in HGN test - Answers 6 for HGN
What does illegal per se mean? - Answers means that the act is inherently illegal. Thus, an act is illegal
without extrinsic proof of any surrounding circumstances such as lack of scienter (knowledge) or
other defenses. They have a BAC of 0.08
______is the Key to _________ field sobriety testing - Answers Simplicity divided attention
What does Phase two consist of? - Answers Have operator step out of the vehicle
How many clues are in the One Leg Stand? - Answers 4 OLS
How many clues are in the Walk and Turn? - Answers 8WAT
How many total steps are in the WAT? - Answers total 18 (9 down and 9 back)
Can you be convicted if your BAC is under .08? - Answers Yes as long as you can articulate and testify
to what you say
Define Nystagmus? - Answers The involuntary jerking of one's eye
Can you not be convicted if you have a BAC of .08 or higher? - Answers Yes if you don't testify or
articulate your case well and if you lie.
What is the time frame for the One Leg Stand? - Answers 30 seconds
Name the two stages in the One Leg Stand? - Answers Instructional
Balance & Counting Stage
Name the two stages in the Walk and Turn - Answers Instructions Stage and Walking Stage
What is the enzyme that metabolized alcohol? - Answers Alcohol Dehydrogenase
What is the decision in in phase one that that the officer must make? - Answers If you have grounds
or enough information to stop the vehicle suspected of DUI
What is the clues wending driver interview? - Answers Sense of Sight
Sense of Hearing
Sense of Smell
What are the percent for accuracy for HGN? - Answers 88% HGN
What are the percent for accuracy for WAT? - Answers 79% WAT
What are the percent for accuracy for OLS? - Answers 83% OLS
Define Optokinetic? - Answers Nystagmus occurs when the eyes fixate on an object that suddenly
moves out of sight or when the eyes watch sharply contrasting moving images
What does HGN stand for? - Answers Horizontal Gase Nystagmus
What are the 3 phases in DWI? - Answers Vehicle in Motion, Personal Contact, and Pre Screening for
Arrest
Does Implied Consent work in VA? - Answers Yes it does
How Many seconds must you hold for Distant and Sustain Nystagmus at Maximum Deviation -
Answers 4 seconds
What is the degree of Onset of Nystagmus Prior to _____degree - Answers 45
What is a Stimulus? - Answers Its an item that is used to perform HGN Ink Pen, marker
What are the 3 clues in HGN? - Answers Lack of Smooth Pursuit
Distant and Sustain Nystagmus at Maximum Deviation
Onset of Nystagmus prior to 45 Degree
What is the main question that needs to be answered in phase 3? - Answers If an arrest needs to be
made or not.
How many clue you need to Validate HGN? - Answers 4 HGN
How many clue you need to Validate WAT? - Answers 2 WAT
How many clue you need to Validate OLS? - Answers 2 OLS
Is the Vertical Gaze Nystagmus validated? - Answers No that test is just a CUE
What are the OLS Test Clues? - Answers Puts Foot Down
Uses arms to balance
Sways while balancing
Hopping
What are the WAT Test Clues? - Answers Steps off line
Uses arms to balance
Improper turn
How many clues are in HGN test - Answers 6 for HGN
What does illegal per se mean? - Answers means that the act is inherently illegal. Thus, an act is illegal
without extrinsic proof of any surrounding circumstances such as lack of scienter (knowledge) or
other defenses. They have a BAC of 0.08
______is the Key to _________ field sobriety testing - Answers Simplicity divided attention
What does Phase two consist of? - Answers Have operator step out of the vehicle
How many clues are in the One Leg Stand? - Answers 4 OLS
How many clues are in the Walk and Turn? - Answers 8WAT
How many total steps are in the WAT? - Answers total 18 (9 down and 9 back)
Can you be convicted if your BAC is under .08? - Answers Yes as long as you can articulate and testify
to what you say
Define Nystagmus? - Answers The involuntary jerking of one's eye
Can you not be convicted if you have a BAC of .08 or higher? - Answers Yes if you don't testify or
articulate your case well and if you lie.
What is the time frame for the One Leg Stand? - Answers 30 seconds
Name the two stages in the One Leg Stand? - Answers Instructional
Balance & Counting Stage
Name the two stages in the Walk and Turn - Answers Instructions Stage and Walking Stage
What is the enzyme that metabolized alcohol? - Answers Alcohol Dehydrogenase
What is the decision in in phase one that that the officer must make? - Answers If you have grounds
or enough information to stop the vehicle suspected of DUI
What is the clues wending driver interview? - Answers Sense of Sight
Sense of Hearing
Sense of Smell
What are the percent for accuracy for HGN? - Answers 88% HGN
What are the percent for accuracy for WAT? - Answers 79% WAT
What are the percent for accuracy for OLS? - Answers 83% OLS
Define Optokinetic? - Answers Nystagmus occurs when the eyes fixate on an object that suddenly
moves out of sight or when the eyes watch sharply contrasting moving images
What does HGN stand for? - Answers Horizontal Gase Nystagmus
What are the 3 phases in DWI? - Answers Vehicle in Motion, Personal Contact, and Pre Screening for
Arrest
Does Implied Consent work in VA? - Answers Yes it does
How Many seconds must you hold for Distant and Sustain Nystagmus at Maximum Deviation -
Answers 4 seconds
What is the degree of Onset of Nystagmus Prior to _____degree - Answers 45
What is a Stimulus? - Answers Its an item that is used to perform HGN Ink Pen, marker
What are the 3 clues in HGN? - Answers Lack of Smooth Pursuit
Distant and Sustain Nystagmus at Maximum Deviation
Onset of Nystagmus prior to 45 Degree
What is the main question that needs to be answered in phase 3? - Answers If an arrest needs to be
made or not.
How many clue you need to Validate HGN? - Answers 4 HGN
How many clue you need to Validate WAT? - Answers 2 WAT
How many clue you need to Validate OLS? - Answers 2 OLS
Is the Vertical Gaze Nystagmus validated? - Answers No that test is just a CUE
What are the OLS Test Clues? - Answers Puts Foot Down
Uses arms to balance
Sways while balancing
Hopping
What are the WAT Test Clues? - Answers Steps off line
Uses arms to balance
Improper turn
