Case Details
- Citation: [2023] SGCA 14
- Title: Dzulkarnain Bin Khamis v Public Prosecutor
- Court: Court of Appeal of the Republic of Singapore
- Date of Decision: 27 April 2023
- Judgment Date (hearing): 19 January 2023
- Judges: Sundaresh Menon CJ, Judith Prakash JCA and Steven Chong JCA
- Appellant 1: Dzulkarnain bin Khamis
- Appellant 2: Sanjay Krishnan
- Respondent: Public Prosecutor
- Procedural History: Appeals against conviction and sentence from the High Court (General Division); criminal motion for leave to adduce fresh evidence
- Criminal Appeal No 30 of 2020: Dzulkarnain bin Khamis v Public Prosecutor (appeal against conviction and sentence)
- Criminal Appeal No 32 of 2020: Sanjay Krishnan v Public Prosecutor (appeal against conviction and sentence)
- Criminal Motion No 23 of 2022: Sanjay Krishnan v Public Prosecutor (application to adduce fresh evidence)
- Legal Area: Criminal law; Misuse of Drugs Act offences; criminal procedure and sentencing; adducing fresh evidence on appeal
- Statutory Framework: Misuse of Drugs Act (Cap 185, 2008 Rev Ed) (“MDA”); Criminal Procedure Code (Cap 68, 2012 Rev Ed) (“CPC”)
- Key Substantive Charges: Capital charges under s 5(1)(a) MDA (delivery/trafficking-related context) and s 5(1)(a) read with s 5(2) MDA (possession for trafficking)
- Drug Quantity: Not less than 2375.1g of cannabis (with reference to trafficking of 2329.1g of cannabis mixture in earlier charges)
- High Court Decision (General Division): Public Prosecutor v Dzulkarnain bin Khamis and another [2021] SGHC 48
- Earlier Related Authority: Saravanan Chandaram v Public Prosecutor and another matter [2020] 2 SLR 95 (“Saravanan Chandaram”)
- Judgment Length: 55 pages, 16,401 words
- Outcome (Court of Appeal): Appeals dismissed; conviction and sentences upheld; criminal motion dismissed
Summary
In Dzulkarnain bin Khamis v Public Prosecutor ([2023] SGCA 14), the Court of Appeal dismissed two criminal appeals arising from the appellants’ convictions for capital cannabis offences under the Misuse of Drugs Act (MDA). The case concerned a coordinated operation in which one appellant, Dzulkarnain, delivered a brown box containing cannabis to the other appellant, Sanjay, who was apprehended shortly after retrieving the box from a designated drop-off location. Both appellants claimed trial to capital charges, and the High Court rejected their defences and imposed the mandatory death sentence on Sanjay and an alternative life sentence on Dzulkarnain due to the issuance of a certificate of substantive assistance (CSA).
On appeal, Sanjay advanced multiple grounds, including alleged reliance on inadmissible statements, an argument that the Prosecution’s case theory was inconsistent and prejudicial, and a challenge to the High Court’s finding that he failed to rebut the statutory presumption under s 18(2) of the MDA regarding knowledge of the nature of the drugs. Sanjay also filed a criminal motion seeking leave to adduce fresh evidence relating to the chain of custody of drug exhibits. The Court of Appeal dismissed the motion and upheld the convictions and sentences, finding no material error in the High Court’s reasoning and no basis to disturb the findings of fact.
What Were the Facts of This Case?
The events began on 23 February 2015. Dzulkarnain drove a van to a bus stop near Tuas Checkpoint, where he collected a brown box (the “Brown Box”). He then drove to multiple locations, ultimately arriving at Lorong 21 Geylang and then Lorong 37. During the operation, Dzulkarnain’s van was tailed by CNB officers in two phases: an initial team lost sight of the van at some point, and a second team continued the surveillance as the van moved to Lorong 21 and Lorong 37.
At Lorong 37, CNB officers observed Dzulkarnain place the Brown Box behind a green dustbin marked with the number “14” (the “Green Bin”), located next to No 14, Lorong 37 Geylang (the “drop-off point”). After Dzulkarnain drove away, Sanjay arrived at the drop-off point within about five minutes. CNB officers saw Sanjay stop beside the Green Bin, retrieve a brown box from behind it (the “SKP Box”), and then leave in his car. Sanjay was later apprehended near Lorong 36 Geylang at about 4.35pm.
Dzulkarnain was arrested shortly thereafter at around 4.40pm at an Esso petrol kiosk. After Sanjay’s arrest, he was taken to a multi-storey carpark at Block 56A Cassia Crescent (the “MSCP”), where a body search was conducted and a handphone was recovered. CNB officers then searched Sanjay’s car in his presence and retrieved multiple exhibits, including the SKP Box containing five bundles of vegetable matter. The Health Sciences Authority analysis confirmed that the contents contained not less than 2375.1g of cannabis and 2329.1g of cannabinol and tetrahydannabinol. Other exhibits included multiple handphones, two notebooks containing handwritten entries relating to drug transactions and prices, and weapons (two samurai swords and a knife).
Crucially for the evidential issues on appeal, the SKP Box was opened in the presence of officers. After Sanjay was asked about its contents and responded non-verbally (recorded as an “oral statement” in the CNB field book), officers removed the bundles, repacked and sealed them into separate polymer bags, and placed the drug exhibits into a green duffel bag (the “duffel bag”). The duffel bag was then handed to SI Tay. From about 7.45pm to 8.30pm, SI Tay recorded a contemporaneous statement from Sanjay under s 22 of the CPC, in which Sanjay said he did not know what the SKP Box contained. The investigation also involved multiple other statements recorded over time, including a cautioned statement recorded on 24 February 2015 and later long statements, in which Sanjay’s account of what he believed the box contained shifted.
What Were the Key Legal Issues?
The Court of Appeal had to determine whether the High Court was correct to convict the appellants of the pressed capital charges under the MDA. Although the High Court found that each appellant’s involvement was limited to activities specified in s 33B(2)(a) of the MDA, the sentencing outcomes differed because only Dzulkarnain received a certificate of substantive assistance (CSA). The central issues on appeal therefore included both (i) whether the convictions were safe on the evidence and (ii) whether the statutory presumptions and evidential rulings were properly applied.
For Sanjay, the appeal raised three main legal questions. First, whether the High Court had erroneously relied on statements that were not admissible when making its findings. Second, whether the Prosecution’s case theory was not unified but instead consisted of inconsistent and incompatible parts, such that it prejudiced Sanjay’s defence. Third, whether the High Court erred in finding that Sanjay failed to rebut the presumption under s 18(2) of the MDA that, where a person is found in possession of controlled drugs, knowledge of the nature of the drugs is presumed unless rebutted on a balance of probabilities.
Separately, Sanjay’s criminal motion required the Court of Appeal to consider whether fresh evidence should be admitted on appeal. The proposed fresh evidence was Sanjay’s own account of the location of a duffel bag containing the drug exhibits seized from him. Sanjay argued that this would contradict a CNB officer’s testimony about custody over the duffel bag and was therefore material to whether the chain of custody of the drug exhibits had been satisfactorily established. The legal issue was whether the evidence met the threshold for admission and whether it could realistically affect the outcome.
How Did the Court Analyse the Issues?
The Court of Appeal approached the appeals by first situating the case within the statutory structure of capital MDA offences and the evidential framework used in High Court trials. The judgment noted that the appellants were originally charged with a second offence relating to trafficking of 2329.1g of cannabis mixture, but after Saravanan Chandaram, the trial judge stood down those charges. This procedural development meant the High Court ultimately convicted the appellants on the charges that were pressed against each of them, and the Court of Appeal’s task was to assess whether those convictions were supported by the evidence and properly reasoned.
On the factual matrix, the Court of Appeal accepted that the operation established a clear sequence: Dzulkarnain collected the Brown Box, placed it at a specific drop-off point behind the Green Bin, and Sanjay later retrieved the SKP Box from the same location. The Court of Appeal treated this as a key evidential link supporting the inference of delivery and possession for trafficking-related purposes. The appellants’ defences were rejected by the High Court, and the Court of Appeal did not identify any material misapprehension of evidence that would justify appellate interference with those findings of fact.
With respect to Sanjay’s first procedural ground, the Court of Appeal examined whether the High Court had relied on inadmissible statements. The Court of Appeal’s analysis (as reflected in the grounds of decision) focused on whether any alleged inadmissibility was actually relevant to the High Court’s ultimate findings. The Court of Appeal’s approach in such cases is typically to distinguish between statements that may be problematic in isolation and the broader evidential basis for conviction. Where the conviction rests on admissible evidence and the inadmissible material does not materially affect the reasoning, appellate courts will generally be reluctant to overturn convictions.
On Sanjay’s second ground concerning the Prosecution’s “unified case theory”, the Court of Appeal addressed the claim that the Prosecution’s case was inconsistent and incompatible, thereby prejudicing the defence. The Court of Appeal’s reasoning emphasised that the Prosecution’s theory must be assessed in context of the evidence as a whole, including how the narrative evolved through investigation and how the trial judge treated discrepancies. The Court of Appeal found that the High Court’s evaluation of the evidence did not demonstrate the kind of inconsistency that would undermine fairness or the reliability of the findings. In particular, the Court of Appeal considered that the trial judge’s reasoning reflected a coherent assessment of the evidence rather than a shifting or incompatible theory.
The most substantive legal issue for Sanjay was the s 18(2) presumption. The Court of Appeal upheld the High Court’s conclusion that Sanjay failed to rebut the presumption that he knew the nature of the drugs. The analysis turned on Sanjay’s explanations and how they changed over time. The judgment highlighted that Sanjay’s accounts regarding what he believed the SKP Box contained were not consistent: at one stage he claimed he did not know the contents; in another statement he suggested he believed it contained “illegal cigarettes” based on information from someone referred to as “Malaysia Boy”; later, he departed from that account and said he had been told by “Boy Lai” to take delivery of collectors’ hunting knives and that there “may also be contraband … cigarettes”. The Court of Appeal treated these shifts as undermining the credibility and sufficiency of Sanjay’s attempt to rebut the presumption.
Finally, the Court of Appeal dealt with Sanjay’s criminal motion to adduce fresh evidence. The proposed evidence was Sanjay’s own account of the location of the duffel bag containing the drug exhibits, intended to contradict a CNB officer’s testimony about custody. The Court of Appeal dismissed the motion, indicating that the threshold for admitting fresh evidence was not met and/or that the evidence would not materially affect the chain of custody analysis. In drug cases, chain of custody is important, but the Court of Appeal will consider whether the fresh material is genuinely new, whether it could not reasonably have been obtained at trial, and whether it is sufficiently probative to cast doubt on the integrity of the exhibits. The Court of Appeal concluded that the application did not warrant a remittal for further evidence.
What Was the Outcome?
The Court of Appeal dismissed Sanjay’s criminal motion (CM 23/2022) seeking leave to adduce fresh evidence. It also dismissed both appeals (CCA 30/2020 and CCA 32/2020), thereby upholding the High Court’s convictions for the pressed capital MDA charges.
As a result, the sentences imposed by the High Court were maintained. Dzulkarnain’s sentence remained life imprisonment (as the Prosecution had issued him a certificate of substantive assistance), while Sanjay’s mandatory death sentence remained in place because no CSA was issued to him. The Court of Appeal therefore affirmed both the conviction and the sentencing outcomes.
Why Does This Case Matter?
Dzulkarnain bin Khamis v Public Prosecutor is significant for practitioners because it reinforces the appellate approach to (i) challenges to evidential reasoning in capital MDA cases and (ii) the practical operation of the s 18(2) presumption. The decision illustrates that appellate courts will scrutinise whether alleged procedural or evidential errors could have materially affected the trial judge’s findings. Where the conviction is supported by a coherent evidential foundation, appellate intervention is unlikely.
For defence counsel, the case underscores the difficulty of rebutting the s 18(2) presumption where an accused’s explanations are inconsistent or evolve across statements. The Court of Appeal’s reasoning demonstrates that credibility and consistency are central to whether an accused can establish, on a balance of probabilities, that he did not know the nature of the drugs. Shifting accounts—particularly those introduced late or inconsistent with earlier statements—may be treated as insufficient to rebut the presumption.
For prosecutors and trial judges, the decision also highlights the importance of maintaining a clear chain of custody narrative and ensuring that statements and exhibit-handling procedures are properly documented. Although Sanjay’s fresh evidence application was dismissed, the Court of Appeal’s treatment of the motion shows that chain-of-custody arguments must be supported by genuinely material and admissible evidence that meets the threshold for fresh evidence on appeal.
Legislation Referenced
- Misuse of Drugs Act (Cap 185, 2008 Rev Ed), in particular:
- Section 5(1)(a)
- Section 5(2)
- Section 18(2)
- Section 33B(2)(a)
- Criminal Procedure Code (Cap 68, 2012 Rev Ed), in particular:
- Section 22
Cases Cited
- Saravanan Chandaram v Public Prosecutor and another matter [2020] 2 SLR 95
- Public Prosecutor v Dzulkarnain bin Khamis and another [2021] SGHC 48
- Dzulkarnain bin Khamis v Public Prosecutor [2023] SGCA 14
- [2022] SGCA 21 (cited in the judgment)
Source Documents
This article analyses [2023] SGCA 14 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.