I know a guy who was grounded for 8 months while he proved his fitness to fly after an ‘Anonymous’ report details supposed statement made around aircraft sabotage. He had no recollection of making any statements to that affect yet CASA wouldn’t tell him the date of the flight or let him read the report as they didn’t want him to know who the anonymous reported was. He is now back flying after a series of psychological assessments deemed him to be ‘normal’......... he still has no idea who made the report or what he supposedly said.