The Department of Trade and Industry paid benefits to the appellants in 1992 and 1994 under the General Export Incentive Scheme (GEIS). The Department, acting through its Director-General, instituted action against the appellants to recover damages, alternatively on the basis of unjustified enrichment, alleging that the payments were wrongly made. The appellants raised a special plea contending that the Director-General lacked locus standi in iudicio to institute proceedings, arguing that only the State itself or the political head (Minister) of the department could sue. The High Court dismissed the special plea, and the appellants appealed to the Supreme Court of Appeal.