The first appellant was a society representing breeders and hunters of predators bred in captivity, with 123 members nationwide. The second appellant bred lions in captivity at Bothaville with the intention of reproducing the Cape lion. The third appellant bred lions at Excelsior for sale and hunting, particularly by foreign visitors. On 23 February 2007, the Minister published the Threatened or Protected Species Regulations under section 97 of the National Environmental Management: Biodiversity Act 10 of 2004. The lion (panthera leo) was listed as a vulnerable species. Regulation 24(1) prohibited various activities including the hunting of 'put and take' listed large predators (defined as captive-bred animals released for hunting within 24 months). Regulation 24(2) uplifted the prohibition if the animal had been rehabilitated in an extensive wildlife system and had been fending for itself for at least 24 months. The appellants challenged the validity of these regulations, particularly regulation 24(2) and the composition of the scientific authority. After the application was launched, the Minister amended the regulations on 28 January 2008, temporarily removing lions from the definition of 'listed large predator', pending the court's decision.