Just 0.4% of drivers stopped through Gwent Police’s Christmas anti drink-drive tested positive for alcohol.
In total 20,578 drivers in Gwent were stopped as part of the campaign, which ran from December 1 to January 1. Only 80 returned a positive breath test or refused to provide one.
Of those motorists tested who were under 25-years-old, 0.8% returned a positive breath test or refused/failed to provide one.
Of those who were over 25, 0.3% returned a positive breath test.
Gwent Police Chief Constable Mick Giannasi said: “I am encouraged by the low percentage of positive breath tests returned.