Around 2pm, two men entered the store and walked around several aisles before taking a carton of alcohol off the floor and walking towards the exit.
The men attempted to leave without declaring the items but a staff member stopped them. At this time, one of the men has become physically aggressive and an altercation has occurred.
The same man verbally threatened the staff member while holding him to the ground. During this time, the second man has taken a second box of alcohol and both men have left the store.
The staff member did not receive any injuries as a result of the incident.
Detectives have released images of two men who they believe may be able to assist them with inquiries.
The first man is described as fair skinned with a medium build, approximately 165-170cm tall. He was last seen wearing a camo hat, light coloured blue shorts and a grey shirt.
The second man is described as fair skinned, slim build, approximately 175-180cm tall. He was last seen wearing a dark coloured hat, white shirt and black shorts.
If you have any information about the identity of this man or details of this offence please contact Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au. You can remain anonymous if you wish and rewards are available once charges are laid. Please quote Reference Number 9202.