A 44-year-old woman allegedly had her car stolen while she was in the emergency department of Armadale Hospital last night.
A police spokeswoman said the 44-year-old arrived at the hospital about 10.45pm and entered the ED with the help of a friend.
She left her Holden Caprice in an emergency parking bay with the keys in the ignition.
Police will allege a 36-year-old Bayonet Head woman stole the car as its owner sought treatment in the ED.
A short time later, officers allegedly tried to stop the Caprice on Albany Highway in Maddington.
"The vehicle was followed for a distance at a slow speed but the pursuit was aborted after it is alleged the vehicle travelled through a red light at the intersection of Spencer and Yale Roads," the spokeswoman said.
"The vehicle was located abandoned in Greenway Avenue, Thornlie and the woman was located near the vehicle."
The 36-year-old has been charged with stealing a motor vehicle, driving dangerously, aggravated fail to stop, dangerous driving, no authority to drive and excess 0.08.
She will be summonsed to appear in court at a later date.