Charges against senior RAAF officer Robert John Crawford dropped Robert John Crawford outside the Adelaide Magistrate Court. COMMONWEALTH prosecutors have dropped all charges against a senior Royal Australian Air Force officer accused of manipulating regulations to earn a tax-free wage bonus. In November, they charged Robert John Crawford, 35, of Mawson Lakes, with one count of abuse of public office. Documents filed with the Adelaide Magistrates Court allege the offence took place between January 24 and February 17 last year. Today, prosecutors tendered no evidence and the court dismissed the case.