The criminal offense may not involve actual driving of the vehicle, but rather may broadly include being physically 'in control' of a car while intoxicated, even if the person charged is not in the act of driving. of any carriage, horse, cattle, or steam engine' is still in force 'carriage' has sometimes been interpreted as including mobility scooters. While the 1872 Act is mostly superseded, the offense of being 'drunk while in charge. A separate offense in the 1988 Act applies to bicycles. In relation to motor vehicles, the Road Traffic Act 1988 creates a narrower offense of driving (or being in charge of) a vehicle while having breath, blood, or urine alcohol levels above the prescribed limits (colloquially called 'being over the limit') and a broader offense of 'driving while unfit through drink or drugs,' (DR20 and DR80 respectively) which can apply even with levels below the limits. The first is 'Driving or attempting to drive with excess alcohol' (legal code DR10), the other is known as 'In charge of a vehicle with excess alcohol' (legal code DR40) or 'drunk in charge' due to the wording of the Licensing Act 1872. In the United Kingdom, there are two separate offences to do with alcohol and driving. Other commonly used terms to describe these offenses include drinking and driving, drunk driving, drunken driving, impaired driving, operating under the influence, or 'over the prescribed limit'. Vehicles can include farm machinery and horse-drawn carriages, along with bicycles.

Such laws may also apply to boating or piloting aircraft.

In the United States, the specific criminal offense is usually called driving under the influence, but in some states 'driving while intoxicated' (DWI), 'operating while impaired' (OWI) or 'operating while ability impaired', 'operating a vehicle under the influence' (OVI), etc. The name of the offense varies from jurisdiction to jurisdiction and from legal to colloquial terminology.

5.1 Preliminary Breath Test (PBT) or Preliminary Alcohol Screening test (PAS)Īlso called driving while impaired/ driving while intoxicated ( DWI), drunk driving, operating while intoxicated ( OWI), operating vehicle under the influence of alcohol or drugs ( OVI) in Ohio, drink-driving (UK/Ireland), or impaired driving (Canada).

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