Fatal crash driver failed to stop twice - report

A high-speed crash that claimed the lives of four young men in Auckland last year was the result of the driver twice failing to stop for police, a report has found.

Dominic Stehlin, 19, was estimated to be driving at 150kmh when he smashed into a parked car in Mangere, the Independent Police Conduct Authority (IPCA) says.

Stehlin and passenger Uesetini Akulu To'o To'o, 18, were killed instantly.

The other two passengers, George Lomia, 20, and Viane Gaga, 18, died later in hospital.

The Authority found Stehlin ignored two police pursuits prior to the crash on May 11, 2013.

On two separate occasions Stehlin slowed down to give police officers the impression he was pulling over, before driving off again at high speed.

Stehlin was unlicensed at the time and was drink driving with a blood alcohol reading of 0.07, toxicology reports show.

The first police pursuit lasted about three minutes and covered a distance of four kilometres, while the other lasted only 30 seconds before it was abandoned due to safety concerns.

The Authority concluded the actions of police in this case complied with law and policy and were justified in the circumstances.

Chair Sir David Carruthers described it as a "tragic accident".

"It was caused by the actions of Mr Stehlin, who was driving dangerously and in excess of the blood alcohol limit for a person of his age," he said.