Practice Test Geeks(CHP) California Highway Patrol Practice Test
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DUI Detection and Enforcement Flashcards

7 cards from real CHP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 DUI Detection and Enforcement flashcards as text

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

    Answer: 8

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

  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:

    Answer: 4 months

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

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

    Answer: Pupils dilated above 6.5mm

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

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

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

    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.

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

    Answer: CVC 23152(b)

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

  6. When conducting a DUI investigation, probable cause to arrest is established by:

    Answer: The totality of evidence including driving behavior, physical symptoms, and SFST performance

    Probable cause requires consideration of the totality of circumstances; no single factor alone is sufficient to meet the legal standard for arrest.

  7. If a DUI results in bodily injury to another person, the offense may be charged as:

    Answer: A felony under CVC 23153

    California Vehicle Code 23153 makes DUI causing injury a wobbler offense that can be prosecuted as a felony depending on injury severity and prior record.