The appellant began his military career in 1986 as a national serviceman. After completing national service in 1988, he joined the Permanent Force in the Corps of Military Police as a lieutenant. He was promoted to captain on 1 January 1991. After obtaining a B Juris degree in 1992, he applied to transfer to the Professional Officers' Corps (POC) as a military law officer. On 11 December 1992, he signed a declaration acknowledging that his seniority in the new professional class would date from his transfer and that his military and functional promotion could be delayed. On 8 February 1993, the Chief of the Army approved his transfer effective 1 January 1993, subject to conditions including retention of rank and salary but loss of seniority. The appellant accepted these conditions in writing on the same day. The loss of seniority meant he would rank below Captain Britz (the most junior POC officer) despite having attained the rank of captain two years earlier. In 1996, the appellant discovered that the Minister of Defence had not approved or considered his transfer. He made representations arguing that only the Minister could require him to lose seniority. The matter was eventually referred to the Minister, who approved the reclassification on 26 August 1997 with the same conditions, including loss of seniority dating back to 1 January 1993.