A senior detective has been stood down as WA Police and the Corruption and Crime Commission investigate alleged misconduct.
The CCC would not name the officer involved but it is understood to be Detective Senior Sergeant Cameron Blaine.
In a joint statement from the CCC and WA Police, a CCC spokesperson said: "Oversight of police conduct was an integral part of the watchdog's work and accounted for a significant amount of allegations it received.
"The investigation is ongoing and for that reason, the Corruption and Crime Commission and WA Police Force will be making no further comment at this time," the spokesperson said.
Detective Senior Sergeant Blaine became well known last year due to his role in the rescue of missing four-year-old girl Cleo Smith in Carnarvon.