Case Details
- Citation: [2021] SGCA 52
- Title: Tang Keng Lai v Public Prosecutor
- Court: Court of Appeal of the Republic of Singapore
- Date: 11 May 2021
- Case Number: Criminal Motion No 4 of 2021
- Coram: Sundaresh Menon CJ; Andrew Phang Boon Leong JCA; Tay Yong Kwang JCA
- Applicant: Tang Keng Lai
- Respondent: Public Prosecutor
- Counsel for Applicant: Ang Sin Teck (Jing Quee & Chin Joo)
- Counsel for Applicant (additional): (as indicated) Jing Quee & Chin Joo
- Counsel for Respondent: Nicholas Khoo, Suhas Malhotra and Tan Hsiao Tien (Attorney-General’s Chambers)
- Legal Areas: Criminal Procedure and Sentencing — Criminal references; Criminal Procedure and Sentencing — Compensation and costs
- Statutes Referenced: Criminal Procedure Code (Cap 68, 2012 Rev Ed) (“CPC”)
- Other Statutes/Provisions Mentioned in Background: Penal Code (Cap 224, 2008 Rev Ed) ss 471, 465, 109
- Related Lower Court Decisions: Public Prosecutor v Tang Keng Lai and another [2020] SGDC 39 and 40
- Prior Appellate Reference (as cited in the judgment): Public Prosecutor v GCK and another matter [2020] 1 SLR 486
- Judgment Length: 4 pages, 2,572 words
Summary
In Tang Keng Lai v Public Prosecutor [2021] SGCA 52, the Court of Appeal dismissed a criminal reference application brought under s 397(1) of the Criminal Procedure Code (“CPC”). The applicant, Tang Keng Lai, sought leave to refer two purported questions of law of public interest to the Court of Appeal following his conviction and sentence for conspiracy to fraudulently use forged quotations as genuine during an audit of the Singapore Prisons Service.
The Court of Appeal emphasised that Singapore has a single tier of appeals in criminal matters, and that the “reference procedure” under s 397 is an exceptional mechanism which must be sparingly invoked. The court held that both questions proposed by the applicant fell far short of the statutory and jurisprudential requirements for a criminal reference, because they were either not questions of law (or not of public interest) and, critically, did not arise for determination by the High Court on appeal. The court also highlighted that misconceived references risk an adverse costs order against the applicant.
What Were the Facts of This Case?
Tang Keng Lai was convicted in the State Courts on 16 charges under s 471 of the Penal Code, punishable under s 465 and read with s 109. The charges related to his involvement in a conspiracy to fraudulently use forged quotations as genuine during an audit conducted by the Auditor-General’s Office into the Singapore Prisons Service (“Prisons”). The underlying conduct, as described in the District Judge’s decision and summarised by the Court of Appeal, involved the submission of quotations for items of work that were backdated so as to create the impression that the quotations had been issued when the relevant projects were ongoing.
Beyond the backdating, the quotations were also drafted in a manner intended to suggest that Thong Huat Brothers (Pte) Ltd (“Thong Huat”) had provided the lowest quotation and had completed the works. This presentation, according to the prosecution case accepted at trial, served to conceal that Thong Huat had overcharged Prisons for those items. The applicant, a Prisons officer at the material time, was found to have agreed to and participated in the plan to submit backdated quotations as genuine documents.
At trial, the District Judge accepted the prosecution’s evidence that there was an agreement to submit backdated quotations, which sufficed to constitute the offence under s 471. The applicant’s defence included an argument that certain co-conspirators called as prosecution witnesses had testified in cross-examination that they were unaware that the documents were “forged”. The District Judge rejected that submission, finding that the evidence showed an agreement to submit the backdated quotations.
On appeal to the High Court, Tang Keng Lai renewed the argument that the prosecution witnesses had agreed in cross-examination that there was no conspiracy or agreement to submit forged documents. The High Court judge disagreed. The judge found that there was no contradiction because, in re-examination, the witnesses reaffirmed that there was an agreement to submit backdated quotations, which amounted to forged documents. The High Court upheld both conviction and sentence. The applicant then brought the present application for leave under s 397(1) of the CPC to refer two questions of law of public interest to the Court of Appeal.
What Were the Key Legal Issues?
The primary legal issue was whether the applicant’s proposed questions satisfied the requirements for a criminal reference under s 397(1) of the CPC. The Court of Appeal reiterated that four conditions must be met before leave can be granted: (a) the reference must relate to a criminal matter decided by the High Court in its appellate or revisionary jurisdiction; (b) the reference must relate to a question of law that is also a question of law of public interest; (c) the question must have arisen from the case before the High Court; and (d) the High Court’s determination of the question must have affected the outcome of the case.
A second issue, closely connected to the first, concerned the court’s approach to the “single tier of appeals” principle. The Court of Appeal stressed that the reference procedure is exceptional and must not be used to circumvent the single tier of criminal appeals. This raised the question of whether the applicant’s application was, in substance, an attempt to re-litigate factual findings or the High Court’s evaluation of evidence, rather than to identify a genuine question of law of public interest.
Finally, the court addressed costs. Once it found the application to be misconceived and without merit, it had to decide whether to make a costs order against the applicant, and if so, on what basis, under s 409 of the CPC.
How Did the Court Analyse the Issues?
At the outset, the Court of Appeal delivered a strong cautionary message. It observed that Singapore operates a single tier of appeals for criminal matters. While the CPC provides exceptional procedures to meet specific needs, these do not detract from the single tier system. The reference procedure under s 397 is one such exceptional procedure, but the authorities make clear that it is “sparingly invoked” and governed by clear principles. The court warned that any attempt to use the procedure to circumvent the single tier of appeals would, by definition, amount to an abuse of process.
Turning to the application itself, the Court of Appeal criticised the way the motion was framed. The criminal motion did not clearly set out the purported questions of law or even how many questions were being put forward. Instead, counsel sought leave to refer questions of law of public interest, with the grounds said to be found in an affidavit. The court noted that counsel had to “plough through” the affidavit to discover the two questions. The court described this as an “appalling way” to bring such an application, and used the case as an opportunity to remind counsel of their duty as officers of the court. The court also signalled that counsel and applicants may face personal costs consequences if they bring hopeless applications.
On the merits of the reference, the Court of Appeal analysed each proposed question against the four conditions for leave. The first question asked, in substance, whether a court can infer evidence of conspiracy by looking at circumstantial evidence where prosecution witnesses give direct evidence of conspiracy but contradict the prosecution in cross-examination by testifying that there is no conspiracy. The Court of Appeal held that this was not a question of law, and certainly not one of public interest. It was, “self-evidently”, a question about applying the law of evidence to specified facts, and could not be answered without reference to the entirety of the evidence. The court therefore characterised it as a question of fact, citing the principle that questions about how to apply evidential rules to particular circumstances are not suitable for criminal reference.
More importantly, the Court of Appeal held that the first question did not arise for determination by the High Court. The High Court had considered the evidence and found that the witnesses had not, in fact, given contradictory evidence. The applicant’s real complaint was that the High Court judge had erred in interpreting the witnesses’ evidence. That would require the Court of Appeal to interfere with the High Court’s evaluation of evidence, which is not the function of a criminal reference. The court further reasoned that because the High Court’s decision turned on the finding that there was no contradiction, the determination of the proposed question could never have affected the outcome. The first question was therefore “utterly without merit”.
The second question was similarly defective. It asked, in effect, as a finder of fact, when witnesses provide contradictory versions of fact contrary to the prosecution’s theory and the prosecution failed to clarify the contradictions, whether the court should accept such evidence or reject it. The Court of Appeal noted that the question was riddled with error and ambiguity. It was unclear whether the question assumed one version contradicted the prosecution theory or whether both did. It was also unclear why contradictions between witness versions would matter if the prosecution theory was already contradicted, and whether there was other evidence on the same issue.
Even on the most charitable reading, the Court of Appeal held that the second question failed the statutory requirements. It assumed that (a) there were two contradictory versions of evidence; and (b) the prosecution failed to clarify the contradictions. But the High Court had found that the relevant witness versions were not contradictory and were consistent with the plan to submit backdated quotations. As with the first question, the applicant would have to persuade the Court of Appeal to overturn the High Court’s findings on evidence. The Court of Appeal emphasised that a criminal reference under s 397(1) cannot be used to challenge factual findings in that way. The second question was therefore also a hypothetical question: it was framed around circumstances that the High Court had found did not exist. Because it did not arise from the case and could not have affected the outcome, it could not qualify as a question of law of public interest for reference.
Having found no merit in the application, the Court of Appeal dismissed it. It also observed that the application could have been dismissed summarily under s 397(3B) of the CPC, but the court proceeded to a hearing primarily to allow counsel to address costs implications. This underscored the court’s view that the procedural mechanism should not be used to prolong matters where the reference is fundamentally misconceived.
On costs, the Court of Appeal accepted the prosecution’s request for a costs order of $2,000 against the applicant. It agreed that this was appropriate under s 409 of the CPC. The court’s reasoning reflects the statutory policy that frivolous, vexatious, or abusive criminal motions may attract costs on an indemnity basis or otherwise fixed. While the excerpt provided truncates the remainder of the judgment, the court’s decision to order costs demonstrates its willingness to deter misuse of the reference procedure and to protect the public interest in efficient criminal adjudication.
What Was the Outcome?
The Court of Appeal dismissed Tang Keng Lai’s application for leave to refer questions of law of public interest under s 397(1) of the CPC. The court held that neither proposed question met the requirements for a criminal reference, particularly because they were not genuine questions of law of public interest and did not arise from the High Court’s determination in a manner that could have affected the outcome.
In addition, the Court of Appeal ordered the applicant to pay costs of $2,000 to the prosecution under s 409 of the CPC. Practically, this meant that the applicant not only failed to obtain a reference to the Court of Appeal, but also faced a financial consequence reflecting the court’s assessment that the application was misconceived and without merit.
Why Does This Case Matter?
Tang Keng Lai v Public Prosecutor is significant for practitioners because it reiterates, in emphatic terms, the narrow scope of the s 397 criminal reference procedure. The Court of Appeal’s discussion is not merely about the failure of the two questions in that case; it is also a procedural warning. The court made clear that counsel must understand the single tier of criminal appeals and must not attempt to use the reference mechanism as a backdoor appeal on evidential or factual issues.
For lawyers, the case provides practical guidance on drafting and framing proposed questions. The court criticised the motion’s lack of clarity and the need to extract the questions from an affidavit. While that criticism was procedural, it also signals that courts expect precision and transparency when invoking exceptional procedures. More substantively, the court’s analysis shows that questions framed around how a trial or appellate court should weigh evidence, or around alleged contradictions in witness testimony, will usually be treated as fact-sensitive and unsuitable for reference.
The case also highlights the court’s willingness to impose costs consequences for misconceived applications. Under s 409 of the CPC, costs may be ordered where a motion is frivolous, vexatious, or otherwise an abuse of process. Tang Keng Lai demonstrates that even where the court proceeds to a hearing (rather than dismissing summarily), it may still impose costs to deter misuse and to protect the integrity of the criminal appellate structure.
Legislation Referenced
- Criminal Procedure Code (Cap 68, 2012 Rev Ed) — s 397(1), s 397(3B), s 409
- Penal Code (Cap 224, 2008 Rev Ed) — s 471, s 465, s 109 (mentioned in background)
Cases Cited
- Public Prosecutor v GCK and another matter [2020] 1 SLR 486
- Public Prosecutor v Teo Chu Ha [2014] 4 SLR 600
- Public Prosecutor v Tang Keng Lai and another [2020] SGDC 39 and 40
- Tang Keng Lai v Public Prosecutor [2021] SGCA 52 (this case)
Source Documents
This article analyses [2021] SGCA 52 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.