The man carjacked at gun-point by a hitchhiker in Busselton last night is still in shock.
South West police are scouring the area for the assailant who used a sawn-off shot-gun to terrorise the motorist before stealing his car about 8.30pm in Busselton.
Detectives are hopeful CCTV footage could help find the hitchhiker, who was picked up near the Broadwater shopping centre.
Det. Sgt Dave Beard said the vehicle was on Caves Road between Busselton and Dunsborough when the hitchhiker pulled a gun on the driver and forced him out of the blue Toyota sedan.
"He's then taken the car and driven off," he said.
The carjacker dumped the vehicle on Cookworthy Street in Vasse and fled through bush.
Det. Sgt Beard said it was hoped CCTV footage from the Broadwater shopping centre might show the identity of the carjacker.
He said the motorist was uninjured but still in shock.
"Obviously, he's shocked ... it's a hitchhiker who has turned bad on him and it's not a nice thing to happen," he said.
The hitchhiker is described as a Caucasian male, of slim build, 180cm tall, believed to be in his late teens or early 20s, and wearing jeans and a dark-hooded jumper.
Det. Sgt Beard urged people not to pick up hitchhikers.
At least eight police cars were part of the search last night.
Police have found the sawn-off shot gun which is now subject to forensic tests.Anyone with any information is urged to contact Crime Stoppers on 1800 333 000.
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