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:
More top news
Friends of a woman with a one-in-a-billion combination of 2 life-threatening illnesses are trying to raise £70,000 to send her to America
Highways England has set out how £2 billion of government investment to improve the capacity of roads in the South West will be used.
A seal pup is recovering after pioneering surgery to remove a severely wounded flipper. 3-week-old Kerplunk is now doing well.