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Drinking and driving

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  • Release date: 12 December 2018
  • Period covered: 2017
An annual report which presents information about association between drink driving and accidents, results of breath tests of drivers involved in accidents and enforcement action relating to drink driving.

Key points

  • In 2016, 12 per cent of all drivers of motorised vehicles and 18 per cent of motorcyclist drivers/riders killed in traffic collisions were above the drink drive limit.
  • The Department for Transport estimates that 7 per cent of killed or serious injury accidents (KSI) that occurred in Wales in 2016 involved drivers over the blood alcohol limit.
  • Police officers’ views about the factors which contributed to accidents occurring suggest that 7 per cent of KSI accidents during 2017 involved drivers that were impaired by alcohol.
  • In 2017, there were 70 accidents in which contributory factors included pedestrians being impaired by alcohol.

Breath tests of drivers taken after accidents show:

  • 4.6 per cent of drivers (134) involved in accidents were over the legal alcohol limit for driving.
  • Over two thirds of positive tests occurred between 6pm and 4am.
  • Drivers were more likely to test positive on weekends than on weekdays.


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Tel: 0300 025 8099

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