Regional Investigations Unit detectives are urgently seeking the whereabouts of 32-year-old Shannon Ross Norton, who they believe may be able to assist with an investigation into an armed robbery and stolen motor vehicle incidents.
It is understood Mr Norton was in the Salmon Gums area on Monday, January 14, but may be heading to Eucla via Norseman.
Mr Norton is described as fair skinned with a slim build, approximately 178 centimetres tall, blonde but he may have shaved his head and brown eyes.
The 32-year-old is believed to be driving a white 2004 Toyota Hilux, with the registration number A64171.
The vehicle has a canvas canopy over the tray.
Members of the public are advised not to approach Mr Norton.
Anyone who believes they may have seen Mr Norton or his Toyota Hilux are urged to contact Police on 131 444.