CHP DUI Detection and Enforcement 3

Question 1

How many clues can a trained officer observe in the Walk-and-Turn (WAT) test?

Accepted Answer

8

Answer

NHTSA identifies eight standardized clues in the WAT test; observing two or more clues indicates a likelihood of 0.08% BAC or higher.

Question 2

Under California's administrative per se (APS) law, a driver arrested for DUI with a BAC of 0.08% or higher will have their license automatically suspended by the DMV for a first offense for:

Accepted Answer

4 months

Answer

Under California Vehicle Code 13353.2, a first-offense APS suspension for a BAC at or above 0.08% is four months.

Question 3

A CHP officer suspects a driver is under the influence of a CNS stimulant. Which sign would most support this conclusion?

Accepted Answer

Pupils dilated above 6.5mm

Answer

CNS stimulants such as cocaine or methamphetamine cause pupil dilation (mydriasis), typically greater than 6.5mm in room-light conditions.

Question 4

Which statement about a blood test versus a breath test in California DUI enforcement is accurate?

Accepted Answer

Blood tests measure BAC directly while breath tests use a conversion ratio

Answer

Breath tests measure deep-lung air alcohol and apply a partition ratio (typically 2100:1) to estimate BAC, while blood tests directly measure alcohol concentration in the blood.

Question 5

Which California Vehicle Code section makes it illegal for a person to drive with a BAC of 0.08% or higher?

Accepted Answer

CVC 23152(b)

Answer

CVC 23152(b) specifically prohibits driving with a BAC of 0.08% or higher, distinct from the general impairment offense in 23152(a).

(CHP) California Highway Patrol Practice Test

(CHP) California Highway Patrol Practice Test

CHP DUI Detection and Enforcement 3