Police are urgently searching for a 30-year-old man wanted over a "current investigation".
Michael Wallam was last seen in the Collie area around 7.30pm on Thursday.
He is described as being approximately 170cm tall, of slim build, with black hair and brown eyes and was last seen wearing a black hooded jumper and black pants.
If sighted, members of the public should not approach him, but call Police immediately on 131 444.
Anyone with information relating to Mr WALLAM’s whereabouts is asked to call Crime Stoppers on 1800 333 000 or online at www.crimestopperswa.com.au.
People providing information to Crime Stoppers may remain anonymous if they wish.