THREE WA Police officers have been stood down from operational duty pending an investigation by the Internal Affairs Unit.
The three constables were the subject of criticism by a Magistrate who took exception with their testimony during the prosecution of two people accused of assaulting police.
The testimony was given in a Perth court on October 10.
After a review of the court case transcripts and vision of the incident, a fresh investigation by the Internal Affairs Unit has been launched.
The officers have been stood down pending the outcome of the investigation.