Two dozen drivers, including one more than four times the legal limit, are heading to court after being caught drink driving in the South over the weekend.
Southern police were alarmed by the numbers, and impairment prevention teams will be ramping up their efforts across the South ahead of Easter weekend.
Between Friday and Sunday hundreds of drivers were tested at checkpoints across the district.
In total, 24 people were apprehended for driving with breath alcohol levels over 400mcg and will be referred to court.
Southern District road policing manager Inspector Amelia Steel said one person was apprehended by Queenstown police after recording a breath alcohol level over 1000mcg, which is four times over the legal limit.