Regional Investigations Unit detectives are seeking information from the public regarding the whereabouts of 36-year-old Charles Gordon STAVELEY and 21-year-old Summer RICHARDS.
It is believed they may be able to assist with a current investigation.
Mr Staveley is descried as olive skinned, 175cm tall, of medium to solid build, with brown hair and brown eyes.
Ms Richards is described as fair skinned, 170-175cm tall, of slim to medium build, with brown hair, brown eyes and a tattoo on the right side of her neck.
They were last known to be in the Perth metropolitan area about 11:00pm last night, Thursday 23 April 2020.
They may act in an unpredictable manner if approached. Anyone who sees Mr Staveley or Ms Richards is advised not to approach them and to call Police immediately on 131 444.
Anyone with information regarding their recent movements is asked to call Crime Stoppers on 1800 333 000 or report the information online at www.crimestopperswa.com.au.