Alcohol, Drugs, and Safe Driving Flashcards
6 cards from real DTT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Alcohol, Drugs, and Safe Driving flashcards as text
What is the minimum disqualification period for a first drink-driving offence in Ireland?
Answer: 3 years
A first drink-driving conviction in Ireland carries a mandatory minimum disqualification of 3 years, in addition to a fine and a possible criminal conviction.
Can you be prosecuted for drink driving the morning after drinking heavily?
Answer: Yes — if your BAC is still above the legal limit the morning after
Alcohol takes time to leave the body — roughly 1 unit per hour. After heavy drinking, BAC may still exceed the legal limit the following morning. A prosecution is possible if you drive above the limit.
What effect does cannabis use have on driving ability?
Answer: It impairs reaction time, judgement, and tracking ability — increasing crash risk
Cannabis impairs reaction time, tracking ability, and hazard perception. Research links cannabis use to significantly increased crash risk — it is illegal to drive while impaired by cannabis in Ireland.
What is 'passive impairment' and can it lead to a positive drug test?
Answer: Exposure to second-hand drug smoke — this can cause a very low positive result but rarely to a prosecutable level
Passive inhalation of cannabis smoke can cause very low THC levels in saliva or blood, but typically not at levels sufficient for prosecution in Ireland. It is not a reliable defence.
How does alcohol affect your risk perception while driving?
Answer: It causes overconfidence — drivers underestimate risks and feel more capable than they are
Alcohol causes overconfidence — impaired drivers often feel more skilled and less aware of danger than they actually are. This is one of the most dangerous effects of alcohol on driving.
What is the Garda checkpoint procedure for testing alcohol at random stops?
Answer: Gardaí may require any driver to take a preliminary breath test at a mandatory checkpoint
Under Irish road traffic law, Gardaí at mandatory alcohol testing checkpoints can require any driver to provide a preliminary breath specimen, regardless of whether impairment is suspected.
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Sources & references
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- theorytest.ie — Eligibility, exam format, passing score, score validity, fees, time limit, exam information · verified Oct 2026
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