Two people are due to appear in court after being caught allegedly drink-driving on Wednesday night.
Senior Sergeant Anthony Bond, of Dunedin, said a 41-year-old man recorded a breath alcohol level of 400mcg at 8.05pm at a police checkpoint in Taieri Rd. He told police he had been drinking at home.
He was on a zero-alcohol licence after a recent drinking conviction and so he would be summoned to court.
A 55-year-old man who had also been drinking at home recorded a breath alcohol level of 489mcg about 8.30pm and he was also summoned to court.
Earlier in the evening, a 73-year-old man was issued an infringement notice after recording a breath alcohol level of 381mcg at 7.45pm.