Company Sergeant Major O'Brien, a vital prosecution witness, outside the court-room at Kluang Airfield. After giving evidence against the accused, C.S.M. O'Brien visited Malacca for a weekend and was attacked with a blunt instrument. Following ten days in hospital, he returned to the witness box. In May 1946, at the Muar Camp in Malaya, over 250 privates refused to obey orders and were later charged with mutiny. Three were acquitted, eight sentenced to five years penal servitude and the rest two years imprisonment. When news reached the UK, two days after sentencing, the Judge Advocate-General quashed the sentences due to irregularities that made the trial unsatisfactory.