The appellants were convicted in the regional court, Springbok, of dealing in rough and uncut diamonds in contravention of section 20 of the Diamonds Act 56 of 1986. The convictions arose from a police trapping operation conducted on 21 October 1995 at a hotel in Nababeep, where undercover police officers offered State diamonds for sale. The appellants attended the meeting with equipment used for diamond testing and cash. A transaction was negotiated, part payment of R145 000 was made, and the diamonds were handed to the second appellant. The appellants were arrested immediately thereafter. During pre‑trial proceedings it emerged that police witnesses had collaborated in compiling their statements, ironing out discrepancies and back‑dating statements, and that a departmental investigation file had initially been withheld. The appellants alleged that this pre‑trial police conduct rendered a fair trial impossible.