Case Details
- Citation: [2023] SGHC 179
- Court: High Court of the Republic of Singapore
- Date: 2023-06-27
- Judges: Vincent Hoong J
- Plaintiff/Applicant: Tham Saik Mun Simon
- Defendant/Respondent: Public Prosecutor
- Legal Areas: Criminal Law — Statutory offences, Criminal Procedure and Sentencing — Sentencing
- Statutes Referenced: Criminal Procedure Code, Road Traffic Act
- Cases Cited: [2023] SGDC 15, [2023] SGHC 179
- Judgment Length: 54 pages, 14,811 words
Summary
This was a criminal appeal against a conviction for drink-driving under the Road Traffic Act. The appellant, Mr. Tham Saik Mun Simon, was convicted at trial of driving with a breath alcohol content exceeding the legal limit. On appeal, he argued that his elevated breath alcohol levels were due to his post-driving application of Bonjela gel, rather than alcohol consumption. The High Court dismissed the appeal, finding that the appellant failed to rebut the statutory presumption that his breath alcohol content at the time of driving matched the later test results.
What Were the Facts of This Case?
The undisputed facts were as follows. On June 14, 2019 at around 2:00 am, the appellant was driving a motor van in an open-air carpark in Yishun, Singapore. The complainant, Mr. Khoh Chee Xuan Russell, called the police to report a "Drunk Driver" who appeared to want to hit him. Police officers arrived and subjected the appellant to a breathalyser test, which he failed. The appellant was then arrested and taken to the Woodlands Police Division Headquarters.
At the police station, around 4:04 am, a police officer conducted a further breathalyser test on the appellant using a Dräger Alcotest 9510 SG machine. This test showed the appellant had a breath alcohol content of 75 microgrammes (μg) of alcohol per 100 millilitres (ml) of breath, exceeding the legal limit of 35 μg/100ml.
The appellant claimed at trial that his elevated breath alcohol levels were due to his post-driving application of Bonjela gel to relieve mouth pain, rather than alcohol consumption. He argued this should allow him to rebut the statutory presumption that his breath alcohol content at the time of driving matched the later test results.
What Were the Key Legal Issues?
The key legal issue was whether the appellant had successfully rebutted the statutory presumption under section 71A(1) of the Road Traffic Act. This presumption provides that the breath alcohol content measured in a later test is deemed to be the same as at the time of driving, unless the defendant can show two things:
(a) That they consumed alcohol only after ceasing to drive (which was accepted in this case); and
(b) That if not for that post-driving alcohol consumption, their breath alcohol content would not have exceeded the legal limit.
The appellant argued that his post-driving application of Bonjela gel, rather than alcohol consumption, was the cause of his elevated breath alcohol content. The key question was whether the appellant had proven this on the balance of probabilities.
How Did the Court Analyse the Issues?
The court examined several aspects of the appellant's defence that his Bonjela gel use, rather than alcohol, caused the high breath alcohol reading:
1. Whether the appellant was burping or belching during the breathalyser test, which could have affected the reading. The court found the evidence did not support this.
2. Whether the Bonjela gel was trapped in the appellant's tooth, which could have affected the reading. The court found the expert evidence did not support this.
3. Whether the post-driving application of Bonjela gel, in the absence of burping/belching or trapped gel, could have caused the high reading. The court found the evidence showed the Bonjela gel would have been eliminated from the appellant's mouth within 20 minutes, and the breathalyser machine could distinguish "mouth alcohol" from "breath alcohol".
4. Whether there were improprieties in how the breathalyser test was administered. The court found some minor procedural issues but held they did not undermine the reliability of the test results.
Overall, the court concluded the appellant had failed to rebut the statutory presumption that his breath alcohol content at the time of driving matched the later test results. The expert evidence did not support his contention that the Bonjela gel, rather than alcohol consumption, caused the high reading.
What Was the Outcome?
The High Court dismissed the appellant's appeal against his conviction and sentence. The appellant was convicted of the drink-driving offence under section 67(1)(b) of the Road Traffic Act and sentenced to three weeks' imprisonment, a $6,000 fine, and a four-year disqualification from driving.
Why Does This Case Matter?
This case provides useful guidance on the application of the statutory presumption in drink-driving cases under the Road Traffic Act. It clarifies that the defendant bears the burden of rebutting this presumption, and that mere assertions about the potential impact of substances like Bonjela gel are not sufficient - the defendant must provide convincing expert evidence to prove their case.
The judgment also sheds light on the capabilities of modern breathalyser technology, such as the Dräger Alcotest 9510 SG machine used in this case, to distinguish "mouth alcohol" from "breath alcohol" and provide reliable results. This will be relevant for future defendants seeking to challenge breath test evidence on technical grounds.
Overall, this case reinforces the high evidentiary bar that defendants must meet to successfully rebut the statutory presumption in drink-driving prosecutions. It provides guidance to both prosecutors and defence counsel on the types of evidence and arguments that are likely to succeed or fail in such cases.
Legislation Referenced
- Criminal Procedure Code (Cap 68, 2012 Rev Ed)
- Road Traffic Act (Cap 276, 2004 Rev Ed)
Cases Cited
- [2023] SGDC 15
- [2023] SGHC 179
Source Documents
This article analyses [2023] SGHC 179 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.