Avon and Somerset's newly elected Police and Crime Commissioner, Sue Mountstevens, joined officers as they carried out random breath tests on drivers during the festive period.
180 people have been arrested in the force area as part of December's Operation Tonic campaign.
She urges people to shop a drink or drug driver by ringing 999 or texting the word 'drunk' to 81819, giving the driver's details if they see anyone getting behind the wheel while under the influence:
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Despite the rain, over a thousand people turned out to watch the annual Cheese Rolling races at Brockworth in Gloucester this lunchtime.
Philippa has the forecast for Devon, Cornwall, Somerset and Dorset
Philippa has the forecast for Bristol, Wiltshire, Gloucestershire, Somerset and Dorset.