Case Details
- Citation: [2025] SGHC 158
- Title: Seng Yong Yi Lucas v Public Prosecutor
- Court: High Court (General Division)
- Case Number: Magistrate’s Appeal No 9182 of 2024
- Date of Decision: 30 July 2025
- Date of Full Grounds: 8 August 2025
- Judge: Vincent Hoong J
- Appellant: Seng Yong Yi Lucas
- Respondent: Public Prosecutor
- Legal Area(s): Criminal Law; Protection from Harassment; Criminal Procedure and Sentencing; Evidence
- Statutory Provision(s) Referenced: Protection from Harassment Act (Cap 256A, 2015 Rev Ed) (“POHA”), ss 7(1), 7(6), 7(7)(a)
- Lower Court Decision: Public Prosecutor v Seng Yong Yi Lucas [2024] SGMC 93 (“GD”)
- Charges: Three charges of unlawful stalking under s 7(1) POHA
- Sentence Imposed by District Judge: 9 months’ imprisonment for each charge; sentences for 2nd and 3rd charges ordered to run consecutively; aggregate 18 months’ imprisonment
- Trial Duration: Approximately 70 hearing days (April 2021 to September 2024)
- Judgment Length: 33 pages; 9,320 words
Summary
In Seng Yong Yi Lucas v Public Prosecutor ([2025] SGHC 158), the High Court dismissed an appeal against conviction and sentence arising from three charges of unlawful stalking under s 7(1) of the Protection from Harassment Act (Cap 256A, 2015 Rev Ed) (“POHA”). The case concerned persistent harassment that lasted over five years, including thousands of text messages, delivery of sample products to the victim’s residence, and the mailing of court-related documents to pressure the victim to drop criminal charges.
The appellant, Mr Seng Yong Yi Lucas, claimed trial and advanced multiple arguments on appeal, including that he believed the victim was his romantic partner and that his conduct was therefore “reasonable” within the meaning of s 7(7)(a) POHA. He also challenged factual findings made by the District Judge (“DJ”), including the identity of a speaker in a phone call and allegations that the victim fabricated evidence. The High Court upheld the DJ’s findings and rejected the appellant’s defences.
Beyond the conviction issues, the High Court also addressed the appellant’s conduct during the trial, particularly his extensive and disruptive cross-examination of the victim and other witnesses. While the detailed “coda” on trial conduct is not fully reproduced in the extract provided, the judgment’s framing makes clear that the court considered the appellant’s trial behaviour as part of the overall assessment of credibility and the seriousness of the harassment.
What Were the Facts of This Case?
The harassment in this case spanned approximately five years. During that period, the appellant sent the victim more than 3,000 text messages. He also ordered sample products to be delivered to the victim’s residence and filled in a gymnasium website form (Virgin Active) using the victim’s particulars and contact number, which resulted in the victim receiving a call from the gymnasium. In addition, the appellant mailed the victim court mention slips and other documents, including materials connected to sentencing submissions and an email thread about a diamond proposal ring. The overall pattern was not limited to a single episode; it was persistent, repetitive, and escalating.
Importantly, the harassment continued even after the appellant was arrested and charged for stalking. This persistence after formal legal intervention is central to the court’s understanding of the appellant’s conduct. The victim’s experience was not merely unwanted contact; it was sustained interference with her personal life and her ability to proceed with criminal proceedings without intimidation.
The trial itself was lengthy, spanning about 70 hearing days from April 2021 to September 2024. The appellant subjected the victim to seven days of cross-examination involving repeated questioning on irrelevant matters. The extract indicates that similar treatment was applied to other witnesses as well. The court’s description of cross-examination tactics—such as asking the victim’s cousin whether he could kiss her, accusing police officers of corruption, and alleging that a witness fabricated evidence by claiming the witness was homosexual—illustrates a broader pattern of conduct that went beyond ordinary adversarial testing of evidence.
At the charging stage, the appellant faced three separate charges of unlawful stalking under s 7(1) POHA. The first charge related to repeatedly sending text messages after the victim had told him to stop. The second charge related to ordering sample products for delivery and using the victim’s particulars to cause a call from Virgin Active. The third charge related to sending at least 117 text messages using an online messaging service and mailing the victim nine court mention slips and other documents. The District Judge convicted on all three charges and imposed nine months’ imprisonment for each, with the 2nd and 3rd sentences running consecutively for an aggregate of 18 months.
What Were the Key Legal Issues?
The High Court had to determine whether the District Judge was correct to convict the appellant on all three charges of unlawful stalking under s 7(1) POHA. This required assessing whether the statutory elements were satisfied, including whether the appellant’s conduct amounted to stalking and whether the appellant’s actions were unlawful in the statutory sense.
A central legal issue was the appellant’s reliance on s 7(7)(a) POHA. The appellant argued that he genuinely believed he was the victim’s boyfriend and that, in light of that belief, his messages and conduct were “reasonable.” The High Court therefore had to evaluate not only the appellant’s claimed state of mind but also whether the belief could be regarded as reasonable in the context of the victim’s communications and demands.
In addition, the appellant raised issues of fact and credibility. He challenged the DJ’s findings about a phone call on 3 July 2015, arguing that the DJ wrongly found that the person who spoke to him was the victim’s cousin (PW10) rather than the victim. He also alleged that the victim fabricated evidence. These arguments required the High Court to consider the proper approach to appellate review of factual findings and the significance of the evidence relied upon by the DJ.
How Did the Court Analyse the Issues?
The High Court approached the appeal by first setting out and addressing the appellant’s arguments against conviction. A key theme in the court’s reasoning was that many of the appellant’s appellate arguments had already been raised before the District Judge and were rejected for sound reasons. The High Court therefore did not treat the appeal as a fresh trial; rather, it assessed whether the DJ’s conclusions were plainly wrong or otherwise unsustainable.
For the 1st charge, the appellant’s primary argument was that he believed he was the victim’s boyfriend and that his continued messaging was therefore reasonable under s 7(7)(a) POHA. The High Court rejected this. It analysed two text messages relied upon by the appellant. The first, sent on 1 July 2014 (“Y? u want to be my boyfriend?”), was treated as an attempt to ascertain the appellant’s intentions rather than an invitation to enter a relationship. The court emphasised the questioning nature of the message (“Y?” meaning “Why?”) and the context in which it was sent, which arose from the appellant asking whether the victim was seeing someone.
The second message, sent on 2 July 2015 (“Talk on the phone otherwise it’s over”), was also rejected as supporting the appellant’s romantic-belief narrative. The High Court held that the pronoun “it” was highly equivocal and could refer to many things, including the line of communication, rather than necessarily a romantic relationship. More importantly, the court found that the appellant could not reasonably believe he was in a romantic relationship because the victim had repeatedly and clearly stated that she had no romantic interest in him. The extract provides an example: on 12 October 2014, the victim said she had “zero interest” in him and that he had failed to pick up signs and signals.
The court further reasoned that even if the appellant subjectively believed he was the victim’s boyfriend, his continued messaging was not “reasonable” in light of the victim’s explicit demands to stop. The High Court highlighted multiple messages where the victim told him to stop pestering her and threatened to report him to the police if he continued. Examples included messages on 13 September 2014 (“Please stop your nonsense” and threats to report), 14 September 2014, 12 October 2014, and 6 July 2015. These communications undermined any claim that the appellant could reasonably continue contacting her. The court’s analysis thus treated the victim’s clear and repeated refusal as a decisive contextual factor for assessing reasonableness under the statutory defence.
Regarding the 3 July 2015 phone call, the appellant argued that a female voice in the call reinforced his belief that the victim was romantically interested. The High Court did not accept this. It noted that the transcript suggested the voice alternated between third-person and first-person references to the victim, and that the victim’s account was that there were three participants: herself, PW10, and the appellant. This created at least some possibility that different speakers spoke at different times. However, the court held that even taking the appellant’s case at its highest—assuming the female voice was always the victim—the content of the call could not reasonably have conveyed romantic interest. The female voice explicitly told the appellant that the victim had no romantic interest, repeatedly demanded that he stop contacting her, and made clear that the messages would be the last. The appellant’s own response (“You can just say you don’t like it … then I will stop it …”) showed that he understood the disavowal.
For the 2nd charge, the appellant advanced arguments that the victim set a trap to frame him and that the DJ erred in assessing a prosecution witness’s testimony. He also challenged the admissibility of a statement recorded by Investigation Officer Murad, characterising it as a “false confession” made in an “anxiety and panic[ked] state of mind.” The High Court rejected these arguments, indicating that the DJ had already considered them and that the appellate submissions did not demonstrate any error that would justify overturning the conviction.
Finally, for the 3rd charge, the appellant again relied on the belief that he was the victim’s boyfriend. The High Court’s rejection of the belief-based defence for the 1st charge logically carried through to the 3rd charge, given the victim’s consistent refusal and the nature of the conduct: repeated texts and the mailing of court-related documents and other materials. The court’s reasoning reflects a consistent approach—assessing the reasonableness of the appellant’s claimed belief against the victim’s clear communications and the objective pattern of harassment.
What Was the Outcome?
The High Court dismissed the appeal against conviction. It upheld the District Judge’s findings that the appellant was guilty on all three charges of unlawful stalking under s 7(1) POHA.
As the extract indicates that the High Court also dismissed the appeal against sentence (with oral remarks at the hearing on 30 July 2025), the practical effect was that the appellant’s aggregate sentence of 18 months’ imprisonment remained in place, with the sentencing structure ordered by the District Judge continuing to govern the term of imprisonment.
Why Does This Case Matter?
This decision is significant for practitioners because it clarifies how the POHA’s “reasonable belief” defence in s 7(7)(a) is likely to be assessed. The High Court’s analysis shows that courts will scrutinise the objective context—especially the victim’s explicit and repeated demands to stop—when evaluating whether the offender’s claimed belief could be reasonable. A subjective belief, even if asserted sincerely, will not avail an accused where the victim’s communications make continued contact plainly unwelcome.
The case also illustrates the evidential and credibility dimensions of POHA prosecutions. The court’s treatment of the 3 July 2015 phone call demonstrates that even ambiguous aspects of evidence (such as who spoke at different points) will not assist an accused if the substance of the communication is inconsistent with the accused’s claimed belief. In other words, the court focuses on what was actually conveyed, not merely on the identity of the speaker.
From a trial practice perspective, the judgment’s emphasis on the appellant’s disruptive cross-examination underscores that courts may view persistent irrelevant questioning and intimidation tactics as part of the broader assessment of the case. While the extract does not reproduce the full “coda” reasoning, the court’s narrative signals that trial conduct can be relevant to how credibility and seriousness are perceived, and it may affect how appellate courts view the overall conduct of the appellant.
Legislation Referenced
- Protection from Harassment Act (Cap 256A, 2015 Rev Ed), ss 7(1), 7(6), 7(7)(a)
Cases Cited
- Public Prosecutor v Seng Yong Yi Lucas [2024] SGMC 93
Source Documents
This article analyses [2025] SGHC 158 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.