Woodlands Dairy (Pty) Ltd v Competition Commission; Milkwood Dairy (Pty) Ltd v Competition Commission

The Competition Commission accused several dairy companies of cartel conduct under s 4(1) of the Competition Act 89 of 1998. In 2005, the Commissioner initiated a broad complaint into alleged anti-competitive behaviour across the milk industry, based on limited information from a dairy farmer and inspectors’ reports that implicated only certain firms. Relying on this initiation, the Commission issued summonses under s 49A to interrogate and obtain documents from Woodlands Dairy and Milkwood Dairy. Evidence obtained through these interrogations was later used to initiate and refer six new complaints in 2006 against the appellants for cartel conduct. The appellants challenged the validity of the summonses, the original 2005 complaint initiation, and the subsequent 2006 complaints and referral, arguing that the Commission acted outside its powers and that all evidence was tainted.

The appeal was upheld with costs. The order of the Competition Appeal Court was set aside and replaced. All complaints initiated by the Competition Commission against Woodlands and Milkwood during 2006, and their referral to the Competition Tribunal, were set aside. The Commission was directed to return all documents and transcripts obtained from the appellants pursuant to the invalid summonses, and to pay the appellants’ costs, including the costs of two counsel.

This case is a leading authority on the limits of the Competition Commission’s investigative powers. It affirms that complaint initiation is a jurisdictional prerequisite for lawful investigation and the use of coercive summons powers. The judgment reinforces constitutional principles of legality, privacy, and fair administrative action in competition enforcement, and prevents industry-wide fishing expeditions without a reasonable, properly grounded suspicion of a specific prohibited practice.