FOUND: Mark thomas griffen - What They Never Told You

Banksia Hill custodial officer Mark Thomas Griffen found guilty of assaulting detainee

A magistrate tells Mark Griffen he "went too far in all the circumstances" when he pulled a teenager off a box and onto the floor in May last year.

ABC News · May 3, 2023

Banksia Hill detention centre guard Mark Griffen appears in Perth court over alleged detainee assault

A Banksia Hill officer accused of using excessive force when dealing with a teenage inmate who admitted using threatening language against him, goes on trial.

ABC News · Mar 16, 2023