Senior Sergeant Anthony Bond said 15 people were caught drink-driving in Dunedin.
More than half were under the age of 23, he said.
"The theme over the weekend was drink-drivers.
"Most concerning was the drivers who were caught driving while disqualified, on top of being under the influence of alcohol as well."
Among those caught by Dunedin police was a 21-year-old man who was taken to Dunedin Hospital for treatment after crashing his car in Portsmouth Dr about 3.50pm on Sunday.
Because he was believed to be intoxicated, a blood sample was taken.
"The vehicle was impounded because he was a disqualified driver," Snr Sgt Bond said.
"We’re waiting on the blood sample to come back."
At 4.15am on Sunday a vehicle driven by a 23-year-old man crashed into two parked cars and a fence in Glen Rd.
The man recorded a breath-alcohol level of 743mcg and has been summonsed to appear in the Dunedin District Court.
Earlier, at 12.15am, a 20-year-old woman was driving in Cumberland St — a 50kmh speed zone — at about 100kmh.
She failed to take the corner between Albany and Frederick Sts, and crashed into a fence and two street signs.
She recorded a breath alcohol level of 600mcg.
On Saturday, a 20-year-old man crashed into a barrier on the Southern Motorway about 8am, after sliding on ice on the hill from Lookout Point.
Snr Sgt Bond said the man would be summonsed to appear on driving offences.
Also on Saturday, a 20-year-old man was stopped in Gow St, Mosgiel, about 4.30am, where he recorded a breath-alcohol level of 717mcg.
His licence was suspended and he was summonsed to the Dunedin District Court.
And on the same morning, a 17-year-old youth was stopped by police in John Wilson Ocean Dr about 2am for driving an overloaded vehicle which had a non-working front headlight.
"We stopped him due to the headlight not working and spoke to him about the vehicle sitting low.
"He had four passengers and blew 466mcg."
He was referred to Youth Aid.
The highest breath-alcohol level of the weekend was recorded by a 51-year-old who was stopped at a police checkpoint at the Green Island off-ramp, about 10pm on Saturday.
"He blew 817mcg on his way home from a pub and has been summonsed to appear in the Dunedin District Court."
