The court observed that section 35(1) of COIDA may on occasions have seemingly unfortunate consequences in the context of motor accidents, as it deprives an employee of the common-law right of action against an employer and the basis upon which compensation is determined under COIDA differs markedly from that under the RAF Act. However, the court noted that COIDA substitutes a system which has advantages for employees not available at common law, and that both the RAF Act and COIDA constitute social legislation catering for different situations. The court commented that inevitably there will be some overlapping of the areas covered by each Act and provision is made for an injured party in certain circumstances to claim under both Acts, but ultimately a line must be drawn and where that is to be is essentially a question of policy for the legislature. The court also noted that the constitutionality of section 35(1) of COIDA was upheld in Jooste v Score Supermarket Trading (Pty) Ltd 1999 (2) SA 1 (CC). The court applied the well-established rule of construction that the legislature is presumed to know the law, including authoritative interpretations by courts, and noted that the legislature retained in substance the relevant statutory provisions through a series of subsequent enactments (Compulsory Motor Vehicle Insurance Act 56 of 1976; Motor Vehicle Accidents Act 84 of 1986; Multilateral Motor Vehicle Accidents Fund Act 93 of 1989) after the Mphosi decision in 1974.