A 70-year-old man with a medical condition, who uses a walker, was pushed then robbed at his Westminster home on Monday night.
Mirrabooka Detectives need help from the public with their investigation into the robbery.
Between 8.30pm and 9.15pm on Monday night, the 70-year-old man heard a knock at the door of his home.
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READ NOWHe answered the door and spoke with a man who led the victim to believe they knew each other.
So the 70-year-old victim invited the man into his house.
After a brief discussion, the offender became aggressive.
He pushed the victim in the chest and demanded money.
He took the victim's wallet, car keys and iPad.
The offender left in the 70-year-old man's silver Toyota Camry (similar to the car pictured), with the registration number 1EOS367.
The offender is described as dark skinned, approximately 30-years-old, tall and wearing a blue shirt with blue trousers.
To assist with this investigation, call Crime Stoppers on 1800 333 000.