Police announced earlier this week that they were looking for the driver of a vehicle in connection with the disappearance of Barford, who was reported missing more than two weeks ago.
A silver hatchback police believe to be a Suzuki Swift, Nissan Tiida “or similar” was seen on security footage the morning after Barford went missing.
About 4.15am on Sunday, September 24, the car was seen going north on the Northwestern Motorway, “probably from the St Lukes on-ramp”, a police spokesman said.
At 4.28am, the car stopped on the left shoulder of the motorway between Westgate and the Brigham Creek Rd roundabout.