Case Details
- Citation: [2022] SGCA 65
- Title: Kong Swee Eng v Public Prosecutor
- Court: Court of Appeal of the Republic of Singapore
- Date of Decision: 10 October 2022
- Case Type: Criminal Motion (leave to refer questions of law of public interest)
- Criminal Motion No: 28 of 2021
- Related Proceedings: Magistrate’s Appeal No 9418 of 2020 (High Court appeal); Public Prosecutor v Kong Swee Eng [2022] SGHC 6
- Judges: Sundaresh Menon CJ, Tay Yong Kwang JCA and Steven Chong JCA
- Applicant: Kong Swee Eng
- Respondent: Public Prosecutor
- Legal Area(s): Criminal Procedure and Sentencing; Criminal reference; Leave to refer
- Statutes Referenced: Criminal Procedure Code (Cap 68, 2012 Rev Ed) (“CPC”) including ss 392 and 397(1); Prevention of Corruption Act (Cap 241, 1993 Rev Ed) s 6(b)
- Cases Cited (as provided): [2020] SGDC 140; [2022] SGHC 6; [2022] SGCA 65; [2022] SGHC 50
- Judgment Length: 14 pages, 3,733 words
Summary
Kong Swee Eng v Public Prosecutor [2022] SGCA 65 concerned an application to the Court of Appeal for leave to refer a question of law of public interest under s 397(1) of the Criminal Procedure Code (CPC). The applicant, Kong Swee Eng, had been acquitted by the District Court on ten charges under the Prevention of Corruption Act, but the High Court (in an appeal by the Prosecution) convicted her on eight of the ten charges. The applicant then sought leave to refer a question aimed at clarifying the approach an appellate court should take where a defence is raised and the Prosecution elects not to call a material witness central to disproving that defence.
The Court of Appeal’s focus was not on re-litigating the underlying corruption charges, but on whether the proposed “Question” met the statutory threshold requirements for a criminal reference. In particular, the Court examined whether the question was a question of law of public interest that arose from the High Court’s decision and affected the outcome of the case. The Court ultimately declined to grant the leave sought, holding that the proposed question did not satisfy the requirements under s 397(1) CPC.
While the decision is procedural, it is practically significant for criminal practitioners. It underscores that the criminal reference mechanism is not a vehicle to obtain advisory guidance untethered from the precise legal reasoning that drove the outcome below. It also highlights the importance of identifying the legal issue that truly “arose” from the High Court’s determination and that had a determinative effect on the result.
What Were the Facts of This Case?
The applicant, Kong Swee Eng, and her husband owned Rainbow Offshore Supplies Pte Ltd (“Rainbow”), a company supplying equipment and materials for the oil and gas industry. At the material times, Rainbow supplied Jurong Shipyard Pte Ltd (“JSPL”), and JSPL was Rainbow’s only customer. Following investigations by the Corrupt Practices Investigation Bureau, Kong was charged in 2016 under s 6(b) of the Prevention of Corruption Act with ten counts of corruptly giving various forms of gratification to JSPL employees between 2008 and 2013. The alleged purpose was to advance Rainbow’s business interests with JSPL.
The majority of the employees who received gratification worked in JSPL’s procurement department. The charges therefore turned not only on whether gratification was given, but also on the presence of the requisite corrupt intent and guilty knowledge. Kong’s defence was central to the later procedural dispute: she claimed that there was a “special relationship” between Rainbow and JSPL such that Rainbow was effectively guaranteed JSPL’s custom. On her case, if Rainbow was guaranteed JSPL’s business, then the gratification could not have been intended to advance Rainbow’s business interests; accordingly, there would be no corrupt intent.
At trial in the District Court, Kong’s “special relationship” defence was said to be known only to four persons: Kong; her husband (Mr Huan); JSPL’s CEO at the time of trial (Mr Wong); and JSPL’s previous CEO (Mr Tan). Notably, Mr Wong and Mr Tan were not called by the Prosecution. Mr Huan testified for the Prosecution and suggested that there was a unique business relationship between Rainbow and JSPL, though he did not go so far as to say Rainbow was guaranteed JSPL’s custom. Kong testified in her own defence and only then raised the special relationship defence.
After Kong testified, the Prosecution indicated it intended to call Mr Wong as a rebuttal witness. However, near the end of the Defence’s case, the Prosecution changed course and decided not to call Mr Wong. The Prosecution disclosed Mr Wong’s investigation statements to Kong’s then counsel, Mr Michael Khoo SC (“Mr Khoo”), after Kong had already testified. The Defence was given the opportunity to call Mr Wong, but Mr Khoo took the view that the onus lay on the Prosecution to rebut the special relationship defence. The Defence therefore elected not to call Mr Wong and closed its case.
The District Judge found that the special relationship defence was not inherently incredible and created a reasonable doubt on all ten charges, particularly as to whether there was an objectively corrupt element and whether Kong possessed the requisite guilty knowledge. Because the Prosecution did not rebut the defence, the District Judge concluded that the acts could not be gratification given with corrupt intent and could not be inducements to advance Kong’s business interests. Kong was acquitted on all ten charges. The District Court’s grounds were later reported as Public Prosecutor v Kong Swee Eng [2020] SGDC 140.
On appeal, the Prosecution challenged the acquittal. The High Court held that the special relationship defence was inherently incredible. It pointed to factors including the late raising of the defence, inconsistencies in Kong’s accounts, the absence of corroborative evidence, and the lack of clarity about how the alleged special relationship operated alongside JSPL’s procurement processes. The High Court found that Kong had not met her evidential burden and that the Prosecution therefore did not need to call Mr Wong to rebut her testimony. The High Court convicted Kong on eight charges and affirmed acquittal on two charges. The High Court’s decision was reported as Public Prosecutor v Kong Swee Eng [2022] SGHC 6 (“Kong (MA)”).
After the High Court’s decision, Kong sought to introduce two further statements from Mr Wong, recorded in October and November 2021. She applied for leave under s 394H(1) CPC to review the High Court’s decision, relying on these statements. The High Court dismissed the application, reasoning that the further statements were substantially similar to Mr Wong’s earlier investigation statements already disclosed at trial and could have been adduced earlier with reasonable diligence. The High Court further found that the new statements did not conclusively show that Rainbow was guaranteed JSPL’s custom; instead, they suggested JSPL had relationships with “strategic suppliers” subject to conditions. This decision was reported as Kong Swee Eng v Public Prosecutor [2022] SGHC 50.
What Were the Key Legal Issues?
The key legal issue before the Court of Appeal was whether Kong’s proposed question satisfied the statutory requirements for a criminal reference under s 397(1) CPC. The applicant’s “Question” (after amendments) asked: in a situation where a defence has been raised by an accused person but the Prosecution elects not to call a material witness central to disproving that defence, should an appellate court reverse an acquittal without exercising its powers under s 392 CPC to hear the evidence of that material witness.
Although the question was framed as a matter of appellate procedure and the handling of missing or uncalled evidence, the Court of Appeal treated it as a threshold inquiry: whether the question was (i) a question of law; (ii) a question of law of public interest; (iii) arising from the case before the High Court; and (iv) affecting the outcome of that case. These requirements were drawn from the Court of Appeal’s earlier decision in Public Prosecutor v Lam Leng Hung and others [2018] 1 SLR 659 at [51].
In substance, the Court had to determine whether the High Court’s reasoning turned on a legal principle about an appellate court’s duty (or lack thereof) to call or direct the calling of a material witness under s 392 CPC, or whether the High Court’s conclusion was driven by its assessment of the defence’s evidential foundation and inherent credibility, such that the question did not truly “arise” from the High Court’s decision in the way required by s 397(1).
How Did the Court Analyse the Issues?
The Court of Appeal began by setting out the statutory framework for criminal references. Under s 397(1) CPC, a question of law of public interest may be referred to the Court of Appeal, but only if the threshold requirements are met. The Court reiterated that the reference mechanism is constrained: it is not enough that the question is interesting or potentially clarificatory; it must be tethered to the High Court’s determination and must have affected the outcome.
In analysing the threshold requirements, the Court noted that s 392 CPC provides an appellate court with a power to take or direct the taking of additional evidence if it thinks such evidence is necessary. The applicant’s question assumed that, where a material witness is not called by the Prosecution, an appellate court should reverse an acquittal without using s 392. The Court observed that neither party had invited the High Court to exercise its s 392 powers to take or direct the taking of Mr Wong’s evidence. This contextual point mattered because it suggested that the High Court was not asked to consider, and did not decide, a legal issue about the exercise of s 392 in the specific circumstances.
The Court then examined the applicant’s submissions on the threshold requirements. The applicant argued that the question was one of law of public interest because it would clarify the approach to be taken by an appellate court when it is aware of the existence of a material witness who can conclusively support or rebut a defence. The applicant further contended that the issue affects accused persons’ rights, including the presumption of innocence and the Prosecution’s burden to prove guilt beyond reasonable doubt. The applicant relied on Jagatheesan s/o Krishnasamy v Public Prosecutor [2006] 4 SLR(R) 45 for the proposition that reasonable doubt can arise from a “lack of evidence”.
However, the Court’s analysis turned on whether the question truly arose from the High Court’s decision and affected the outcome. The High Court had held that the special relationship defence was inherently incredible and that Kong had not met her evidential burden. On that reasoning, the Prosecution’s decision not to call Mr Wong was not treated as fatal; rather, the defence failed at the evidential stage because it lacked corroboration and clarity, and because the evidence contradicted the defence’s premise. In other words, the High Court’s outcome depended on its assessment of the defence’s credibility and evidential sufficiency, not on a legal rule that an appellate court must always use s 392 to obtain the evidence of an uncalled material witness.
Accordingly, the Court of Appeal concluded that the proposed question did not satisfy the statutory requirement that it arise from the case decided by the General Division of the High Court and affect the outcome. The Court’s approach reflects a consistent theme in criminal reference jurisprudence: the Court of Appeal will not grant leave where the question is framed at too high a level of generality or where it does not map onto the legal reasoning that actually determined the result below. The decision therefore illustrates that even if a question has potential broader significance, it must still be anchored to the High Court’s legal determinations.
What Was the Outcome?
The Court of Appeal dismissed Kong Swee Eng’s criminal motion for leave to refer the question of law of public interest. As a result, the Court did not proceed to answer the proposed question, and the High Court’s convictions on eight charges (and acquittal on two) remained undisturbed.
Practically, the decision meant that Kong could not obtain appellate clarification through the s 397(1) reference route on the specific procedural issue she raised about the handling of an uncalled material witness and the relationship between s 392’s additional evidence power and appellate reversal of acquittals.
Why Does This Case Matter?
Although the decision is procedural, it is important for criminal practitioners because it clarifies the limits of the criminal reference mechanism under s 397(1) CPC. Lawyers often consider whether a broader legal principle can be extracted from a case by framing a question of public interest. This case demonstrates that the Court of Appeal will scrutinise whether the proposed question genuinely arises from the High Court’s legal reasoning and whether it affected the outcome. Questions that are framed in a way that does not correspond to the determinative legal basis below are unlikely to meet the threshold requirements.
For defence counsel, the case also highlights the practical significance of how evidential burdens and credibility assessments are treated at the appellate level. The High Court’s approach—finding the defence inherently incredible and concluding that the evidential burden was not met—meant that the Prosecution’s election not to call Mr Wong was not treated as a decisive legal deficiency. The Court of Appeal’s refusal to grant leave reinforces that, in such circumstances, an attempt to reframe the issue as one about the appellate court’s s 392 powers may not succeed unless the High Court’s decision actually turned on that legal point.
For prosecutors, the decision underscores that the criminal reference route is not a substitute for trial strategy or for challenging the evidential assessment on appeal. Where parties did not invite the appellate court to exercise its additional evidence power, it becomes harder to argue later that the appellate court’s failure to do so is a legal issue of public interest that should be resolved through a reference.
Legislation Referenced
- Prevention of Corruption Act (Cap 241, 1993 Rev Ed), s 6(b)
- Criminal Procedure Code (Cap 68, 2012 Rev Ed), s 392(1)
- Criminal Procedure Code (Cap 68, 2012 Rev Ed), s 397(1)
- Criminal Procedure Code (Cap 68, 2012 Rev Ed), s 394H(1)
Cases Cited
- Public Prosecutor v Kong Swee Eng [2020] SGDC 140
- Public Prosecutor v Kong Swee Eng [2022] SGHC 6
- Kong Swee Eng v Public Prosecutor [2022] SGHC 50
- Public Prosecutor v Lam Leng Hung and others [2018] 1 SLR 659
- Jagatheesan s/o Krishnasamy v Public Prosecutor [2006] 4 SLR(R) 45
- Kong Swee Eng v Public Prosecutor [2022] SGCA 65
- [2022] SGHC 6 (referred to as Kong (MA))
Source Documents
This article analyses [2022] SGCA 65 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.