At around midday on Thursday 14 December 2017, a man entered the platform area of Kelmscott Train Station on Railway Parade Kelmscott.
The man walked up to a wall and used a graffiti implement to graffiti on a wall of the train station before leaving.
Police have released a CCTV image of a man who they believe may be able to assist them with their investigation.
The man is described as: 25 to 35, thin build and short dark hair. Wearing a white polo shirt, dark coloured shorts and carrying a small dark coloured bag.
If you have any information about this offence make a report online at crimestopperswa.com.au or call Crime Stoppers on 1800 333 000, where all calls are strictly confidential, and rewards are offered. Please quote Reference Number 8750