The young driver who killed himself and four others in a horror smash in northern Melbourne was nearly four times over the legal drinking limit for a fully-licensed driver, police say.
But as a P-plater he should not have had any alcohol in his system at all.
A toxicology test into 19-year-old Steven Johnstone has shown his blood alcohol level was 0.19, Deputy Commissioner of road policing Ken Lay says.
The state's legal limit for a fully-licensed driver is 0.05.
Mr Johnstone's 2007 Ford Falcon XR6 smashed into a tree in Mill Park on Sunday morning at 140km/h.
Five people, including Mr Johnstone, died.
One teenage girl, 15-year-old Elissa Iannetta, survived.
Mr Lay said it was a desperately sad situation.
"Certainly, our investigation is indicating very high speed, they're indicating abhorrent behaviour," he told Fairfax Radio Network on Wednesday.
"This is about a particular group of drivers that simply do not play by the rules."