Hamilton police were surprised to find a 13-year-old girl driving her friends home from a party on Monday night.
The teenager was driving her grandmother's car when police pulled it over in a routine stop outside Dinsdale Tavern in Whatawhata Rd about 11.40pm.
Shift manager Senior Sergeant Pete Simpson said police found the 13-year-old behind the wheel and three other girls and two boys of a similar age in the car.
"The driver said a cousin had taken the grandmother's car, without permission, to a party and was too intoxicated to drive it back so the group had decided to make their own way back in the vehicle."
Mr Simpson said that police were highly concerned about the incident because of the ages of the children, and the group had been referred to Youth Aid.