Mandurah detectives are seeking information regarding an assault in Coodanup on Wednesday evening.
The incident happened about 11pm when a male occupant of a residence in Cleopatra Drive was involved in an altercation outside his house.
The man’s wife, on hearing the altercation, went outside and found her husband with serious facial injuries, including a significant injury to one of his eyes.
Just after the incident an older model, dark coloured sedan was seen leaving the area.
Detectives would like to hear from anyone who has information regarding this incident, or who saw or heard anything suspicious in the Cleopatra Drive area about 11pm on January 28.
It is believed two people may have been walking by at the time of the incident and they are urged to come forward and make contact with the investigators via Crime Stoppers.
Anyone who believes they can assist with this investigation is asked to call Crime Stoppers on 1800 333 000.