Case Details
- Citation: [2025] SGCA 38
- Title: CHJ v Public Prosecutor
- Court: Court of Appeal of the Republic of Singapore
- Date: 8 August 2025
- Case Numbers: Criminal Appeal No 14 of 2024; Criminal Motion No 10 of 2025
- Underlying Trial Case: Criminal Case No 44 of 2023
- Judges: Tay Yong Kwang JCA (delivering); Belinda Ang Saw Ean JCA; Woo Bih Li JAD
- Applicant/Appellant: CHJ
- Respondent: Public Prosecutor
- Legal Areas: Criminal Law — Offences; Criminal Procedure and Sentencing — Appeal
- Core Offences: Sexual assault involving penetration under s 376(2)(a) read with s 376(3) of the Penal Code; Obstructing the course of justice under s 204A(b) of the Penal Code
- Procedural Posture: Appeal against conviction and sentence; application to adduce fresh evidence on appeal
- Fresh Evidence Application: Criminal Motion No 10 of 2025 (leave sought under s 392 of the Criminal Procedure Code)
- High Court Decision Cited: Public Prosecutor v CHJ [2024] SGHC 240
- Judgment Type: Ex tempore judgment
- Judgment Length: 9 pages, 2,015 words (as per metadata)
- Statutes Referenced: Criminal Procedure Code (Cap 68, 2012 Rev Ed) (“CPC”); Penal Code (Cap 224, 2008 Rev Ed)
- Cases Cited: [2024] SGHC 240; [2025] SGCA 38 (this decision)
Summary
In CHJ v Public Prosecutor [2025] SGCA 38, the Court of Appeal dismissed both an appeal against conviction and sentence and a related application to adduce fresh evidence on appeal. The appellant, CHJ, had been convicted after trial in the High Court of two charges of sexual assault involving digital penetration of his wife (“the Complainant”) under s 376(2)(a) of the Penal Code, punishable under s 376(3), and of an amalgamated charge of obstructing the course of justice under s 204A(b). The High Court imposed a global sentence of eight years’ imprisonment and six strokes of the cane, with concurrency and concurrency/consecutivity structured across the sexual penetration and obstruction charges.
On appeal, the Court of Appeal held that the fresh evidence sought to be introduced—documents from divorce proceedings and related correspondence—would not have an important influence on the outcome. The Court further agreed with the trial judge’s factual findings and legal conclusions. It rejected the appellant’s attempt to invoke the “unusually convincing” standard of proof, explaining that the Complainant’s evidence was not the sole basis for conviction because there was corroboration from contemporaneous communications and statements. The Court also upheld the correctness of charging two separate penetration incidents and the sentencing structure mandated by the Criminal Procedure Code. Finally, it confirmed that the appellant’s phone calls to the Complainant’s mother fell within the scope of obstruction under s 204A, and that the aggregate sentence was not manifestly excessive.
What Were the Facts of This Case?
The appellant, CHJ, was convicted of sexually assaulting his wife by digital penetration on two occasions. The offences were framed as two separate charges of sexual assault involving penetration under s 376(2)(a) of the Penal Code, with punishment under s 376(3). The trial judge found that the penetration occurred without the Complainant’s consent. The appellant’s defence at trial was not that penetration did not happen, but that it was consensual, or at least that he honestly believed it was consensual. The Court of Appeal accepted that the appellant did not dispute the occurrence of sexual penetration; the dispute concerned consent and the appellant’s state of mind.
In addition to the sexual offences, CHJ was convicted of obstructing the course of justice. The obstruction charge was based on a series of phone calls made by the appellant to the Complainant’s mother between 11 and 17 October 2020. The prosecution’s case was that these calls were intended to persuade and pressure the Complainant to withdraw her police report and to influence the course of the criminal proceedings. The calls were not framed as a mere warning about perjury; rather, the content included threats and pressure tactics, including references to the children’s welfare and the publicity of the criminal case.
Procedurally, CHJ was arrested on 14 July 2020 and released on bail on 16 July 2020. On 31 March 2023, his bail was revoked due to alleged breaches of bail conditions, including driving offences, and he was remanded. He remained in remand until the conclusion of his trial on 22 July 2024. Pending the appeal, the High Court stayed execution of the sentence pronounced by the trial judge at the request of counsel for the appellant, meaning that the caning was stayed while the appeal was pending.
Before the Court of Appeal hearing, CHJ filed Criminal Motion No 10 of 2025 on 1 April 2025, three days before the scheduled hearing of the appeal. He sought leave to adduce fresh evidence under s 392 of the CPC. The fresh evidence consisted of (a) a copy of the Complainant’s divorce originating application filed on 7 March 2025 and served on him in prison on 22 March 2025, and (b) correspondence between the parties’ counsel in the divorce proceedings between 20 December 2024 and 7 March 2025 concerning the two children. CHJ argued that these materials showed embellishment and a changed narrative by the Complainant, and that she had a motive to restrict his access to the children, thereby undermining her credibility in the criminal trial.
What Were the Key Legal Issues?
The appeal raised multiple legal issues, but they can be grouped into three main themes. First, the Court had to decide whether the fresh evidence application should be granted—specifically, whether the proposed divorce documents and correspondence would have an important influence on the result of the appeal against conviction and sentence. This required the Court to apply the statutory framework for adducing fresh evidence on appeal under s 392 of the CPC and to assess relevance and materiality.
Second, the Court addressed the appellant’s challenge to conviction. A central legal question was whether the “unusually convincing” standard of proof should apply. The appellant contended that because the prosecution’s case rested essentially on the Complainant’s evidence, the court should require unusually convincing evidence to convict. The Court of Appeal had to determine whether the evidential foundation was indeed “essentially” the Complainant’s testimony, or whether there was corroboration such that the heightened standard was not engaged.
Third, the Court considered issues relating to the structure and legality of the charges and sentencing. These included whether there should have been two charges of sexual penetration when the incidents occurred one after the other within a short interval and in the same place, and whether the sentencing approach—particularly the use of consecutive imprisonment terms across distinct charges—was correct under the CPC. The Court also had to decide whether the obstruction charge properly fell within s 204A(b), including whether the phone calls could be characterised as more than a “mere warning” about perjury under Explanation 1 to s 204A. An ancillary issue was whether the multiple calls could be amalgamated into a single obstruction charge as a “course of conduct” under the CPC.
How Did the Court Analyse the Issues?
On the fresh evidence application (CM 10), the Court of Appeal emphasised that the proposed evidence should not be admitted if it would not have an important influence on the result. The Court examined the appellant’s theory: that the divorce application and correspondence demonstrated embellishment, narrative changes, and a motive to restrict access to the children, thereby showing that the Complainant’s evidence could not be regarded as “unusually convincing.” The Court rejected this premise at the outset by noting that the “unusually convincing” standard did not apply in the circumstances of this case, because the Complainant’s evidence was not the sole basis for conviction.
The Court also analysed the substance of the alleged inconsistencies. While there were some differences between the Complainant’s criminal trial evidence and what she set out in the divorce application, the appellant did not dispute that the sexual penetration occurred. His defence was consent or honest belief in consent. The Court observed that the inconsistencies concerned minute details rather than the core assertion that penetration occurred without consent. Accordingly, even if the divorce documents could be used to impeach credibility on peripheral matters, they did not undermine the essential finding of non-consent in a way that would likely affect the conviction.
As for the correspondence, the Court treated it as evidence of the Complainant’s position in the divorce proceedings regarding access to the children. It held that correspondence spanning December 2024 to March 2025 had no bearing on the Complainant’s state of mind in July 2020, when the sexual penetration took place. The Court therefore concluded that the fresh evidence would not have an important influence on the outcome and dismissed CM 10.
Turning to conviction, the Court of Appeal agreed with the trial judge’s findings on material issues and found no reasonable doubt that the defences of consent and mistake of fact could not be made out. The Court addressed the “unusually convincing” argument directly. It accepted that the appellant tried to frame the prosecution case as resting essentially on the Complainant’s evidence. However, the Court held that the evidence of penetration and the absence of consent did not come from her alone. It identified corroborating evidence in communications between the appellant and his sister on 14 July 2020, in the first Video Recorded Interview conducted on 14 July 2020, and in the first cautioned statement given by the appellant on 15 July 2020. Because there was corroboration beyond the Complainant’s testimony, the “unusually convincing” standard was not applicable.
On the charging issue—whether there should have been two penetration charges—the Court considered the factual context of the incidents. The Court agreed with the trial judge that the son’s interruption during the bedroom episode on the night of 13 July 2020 caused a break in the sexual penetration, even though the interruption was brief. That break meant there were two distinct incidents of sexual penetration, justifying two separate penetration charges.
Having upheld two penetration charges, the Court then addressed sentencing structure. It noted that the presence of three distinct charges involving imprisonment necessitated two imprisonment terms to run consecutively, as mandated by s 307(1) of the CPC. However, it confirmed that the trial judge ordered the imprisonment terms for the two penetration charges to run concurrently because they involved the same parties and were closely related in time and place and involved the same legal interest. It further confirmed that the concurrent penetration sentences were ordered to run consecutively with the obstruction sentence because the obstruction involved events about three months later, a different party (the Complainant’s mother), and a different legal interest.
The Court also considered a hypothetical: even if there had been only one penetration charge, the trial judge would likely have imposed the same consecutive structure because the penetration and obstruction charges target different legal interests and are separated by several months, even though the obstruction arose as a result of the predicate penetration charge.
Finally, the Court analysed the obstruction charge under s 204A(b). It focused on Explanation 1 to s 204A, which provides that a mere warning to a witness that he may be prosecuted for perjury is insufficient to constitute an offence. The Court held that the appellant’s phone calls did not amount to a mere warning. It gave examples of what was said: the appellant told the Complainant’s mother to tell the Complainant that the children could end up in foster care and that the Complainant, the children, and the criminal case would be published in newspapers if she did not withdraw her sexual assault allegation. Collectively, these calls were clearly intended to persuade and pressure the Complainant to withdraw her police report.
On the ancillary question of whether the four phone calls could be amalgamated into one charge, the Court held that they fell within the wording of ss 124(4) and 124(5) of the CPC as a course of conduct. The Court therefore accepted that the amalgamation was lawful.
As to sentence, the Court applied a manifest excess / wrong-in-principle lens. It found no good reason why a sexual assault by a husband against his wife in a troubled relationship, in the circumstances of the case, should not be punished with caning. It noted that the trial judge had considered case law and ameliorated the imprisonment and caning under the totality principle. The Court concluded that the aggregate sentence of eight years’ imprisonment and six strokes of the cane was not wrong in principle or manifestly excessive.
What Was the Outcome?
The Court of Appeal dismissed CHJ’s appeal against conviction and sentence. It also dismissed Criminal Motion No 10 of 2025, refusing leave to adduce the divorce application and correspondence as fresh evidence on appeal.
Regarding the practical effect of the sentence, the Court ordered that the imprisonment of eight years take effect from 31 March 2023 and lifted the stay on the caning with immediate effect. This meant that while the appellant had remained in remand during the appeal period with caning stayed, the caning would now proceed and the imprisonment would be backdated to the date of remand following revocation of bail.
Why Does This Case Matter?
This decision is significant for practitioners because it clarifies how the Court of Appeal approaches fresh evidence applications on appeal in criminal matters. The Court’s reasoning shows that even where proposed evidence may be used to argue credibility issues, it will not be admitted if it is unlikely to have an important influence on the result. The Court also demonstrates a disciplined approach to relevance: materials from divorce proceedings months later were treated as insufficient to affect the key factual question of consent in July 2020.
Substantively, the case is also useful on the “unusually convincing” standard of proof. The Court of Appeal reaffirmed that the standard does not automatically apply merely because the complainant’s testimony is central. Where there is corroboration from contemporaneous communications and statements, the heightened standard is not engaged. This provides guidance for both defence and prosecution in assessing whether a heightened evidential threshold is properly arguable on appeal.
Finally, the decision offers practical guidance on charge structuring and sentencing in sexual and obstruction cases. The Court’s analysis of (i) when brief interruptions can justify separate penetration charges, (ii) how consecutive and concurrent sentences should be structured across distinct legal interests under the CPC, and (iii) the boundary between a “mere warning” about perjury and impermissible pressure to withdraw a police report under s 204A, will be directly relevant to future cases involving witness influence and obstruction of justice.
Legislation Referenced
- Criminal Procedure Code (Cap 68, 2012 Rev Ed), in particular s 392 (adducing fresh evidence on appeal)
- Criminal Procedure Code (Cap 68, 2012 Rev Ed), in particular s 307(1) (consecutive imprisonment terms for distinct charges)
- Criminal Procedure Code (Cap 68, 2012 Rev Ed), in particular ss 124(4) and 124(5) (amalgamation of charges as a course of conduct)
- Penal Code (Cap 224, 2008 Rev Ed), in particular s 376(2)(a) and s 376(3) (sexual assault involving penetration)
- Penal Code (Cap 224, 2008 Rev Ed), in particular s 204A(b) and Explanation 1 (obstruction of justice; “mere warning” about perjury)
Cases Cited
- Public Prosecutor v CHJ [2024] SGHC 240
- CHJ v Public Prosecutor [2025] SGCA 38
Source Documents
This article analyses [2025] SGCA 38 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.