A Hell's Angels gang boss has been sentenced to at least 12 years in prison for the murder of a gang prospect on Boxing Day two years ago

Andrew Lamositele-Brown , who was deported from Melbourne because of his gang ties, had tried to argue the shooting was an accident.

The shooting caused a seven hour standoff with Auckland police at his Flat Bush home.

He shot the victim while his children and wife were sleeping.

They were later rescued through a window by police.

Jurors took less than an hour to make their decision.