MIDLAND Detectives are urgently trying to find 29-year-old Michael Kobiolke in relation to firearm, robbery and deprivation of liberty offences.
A WA Police spokeswoman said Mr Kobiolke was considered dangerous and unpredictable, and might also be carrying a gun.
Members of the public are warned not to approach him if they see him.
He is described as fair skinned with a ruddy complexion and about 180cm tall.
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READ NOWHe has a slim build, medium-length brown hair, brown eyes and possible facial hair.
Anyone who sees him should call 131 444 immediately.