The children screamed in terror.
He lined up three street lights and immediately before hitting the first one, he reached over and unclipped the female passenger's seatbelt.
Orchard then lined up the poles so that the impact was on the passenger's side of the ute.
The vehicle flipped over and came to a rest on the front passenger's side from the impact with the third pole.
Orchard then got out armed with a 25cm kitchen knife and spent about five minutes around the side of the crashed ute. Members of the public stopped to offer help.
Orchard dropped the knife and ran off and was arrested a short time later.
He was taken to the Whangarei Hospital with suspected neck injuries while his female passenger suffered bruising all over her body and was airlifted to hospital. The children were not hurt.
In explanation, Orchard said the crash was not an accident and he meant to do it.
He was remanded in custody for sentencing on December 6 and Justice Kit Toogood ordered a pre-sentence report.