Rockingham Detectives are seeking information regarding the incident in the Rockingham Shopping Centre car park on Tuesday, April 11.
At about 4.30pm, a 65-year-old man was walking to his vehicle.
As he was near to his vehicle he noticed a man walking behind and towards him.
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The man grabbed a large gold chain the victim was wearing and attempted to pull it from his neck, choking him.
The victim dropped his shopping and car keys and managed to get his hands between the chain and his throat.
After a brief struggle and unable to break the chain, the man walked away.
The victim received bruising to his neck but did not require medical treatment.
Detectives would like to speak with the man in the attached photo who they believe can assist them with their inquiries.
He was described as in his late 40s, fair skinned with a tanned complexion, about 188cm tall, a solid build and has a moustache and a sleeve tattoo on his right arm. He was wearing a black t-shirt and beige shorts.
Anyone with information regarding this incident is asked to call Crime Stoppers on 1800 333 000, or report the information online at Crime Stoppers.