The Western Australian opposition wants an inquiry into whether initiation rituals are widespread within the West Australian police force following allegations of officers tasering colleagues.

An internal investigation is under way into the alleged tasering by officers at the Rockingham Police Station south of Perth.

They are alleged to have discharged Tasers directly against the bodies of fellow officers to deliver a painful shock as part of an initiation ritual or for punishment.

A sergeant and a senior constable have been stood down on full pay and two constables have been confined to office duties while the Internal Affairs Unit investigates.

The state opposition's police spokeswoman Margaret Quirk said it would be of grave concern if there was any evidence such behaviour was widespread within the force.