Pendakwa Raya v Cheng Sim Chen (Zheng Xincheng)

Case Significance

Illustrates the maximum-evaluation test for a prima facie case at the close of the prosecution case in a drug prosecution, and the significance of a reliable chain of custody, secure proof of identity and evidence of common intention under section 34 of the Penal Code.

This High Court decision concerns the sufficiency of the prosecution's evidence at the close of its case in a set of dangerous-drugs prosecutions tried together, and results in the acquittal of all the accused. The charges, brought under section 39B(1)(a) and section 12(2) of the Dangerous Drugs Act 1952, alleged the trafficking in and possession of various dangerous drugs, said to have been connected to parcels handled at a courier company's premises. Applying the requirement that the prosecution establish a prima facie case on a maximum evaluation of its evidence, the Court examined the elements of possession, that is whether each accused had the custody and control of the drugs and the requisite knowledge, applying the principle in Chan Pean Leon v Public Prosecutor. It identified a series of difficulties in the prosecution's case: the absence of any identification parade and confusion over identity, including two individuals sharing the same name; the fact that the parcels had been inspected by staff and no drugs were found at the point of delivery; material contradictions in the witnesses' evidence as to the date, location and number of packages; an incomplete chain of custody with contradictory handover records; and, as regards the jointly charged accused, the absence of any evidence of a relationship or joint plan capable of establishing common intention under section 34 of the Penal Code. Concluding that these gaps meant the prosecution had failed to establish a prima facie case, the Court acquitted and discharged all the accused without calling on them to enter their defence. The judgment illustrates the maximum-evaluation test at the close of the prosecution case and the importance of a reliable chain of custody and secure proof of identity in drug prosecutions. The decision is a detailed illustration of how contradictions over identity, the number of packages and the chain of custody, taken together, can prevent the prosecution from establishing a prima facie case, so that the accused are entitled to be acquitted without being called to answer.