A dispute arose between the National Commissioner of the South African Police Service (SAPS) and police unions regarding the interpretation of regulation 24(6) of the SAPS Regulations, 2000. The regulation provides that when a post is upgraded, the Commissioner 'may' continue to employ the incumbent in the higher-graded post without advertising it, provided certain conditions are met. The Commissioner contended that this wording conferred a discretion, whereas the unions argued it imposed a duty to retain and effectively promote the incumbent automatically. The Commissioner sought declaratory relief in the High Court, which ruled in his favour. The Supreme Court of Appeal, by majority, overturned that decision, holding that the Commissioner was obliged to retain the incumbent if the conditions were met. The Commissioner then sought leave to appeal to the Constitutional Court.