Alcohol Breathalyser Test In Singapore: Can You Refuse It?

by 9 March 2025Knowledge & Insights

Singapore’s drunk driving laws are among the strictest in the world, reflecting the country’s commitment to road safety. Central to enforcing these laws is the alcohol breathalyser test, which allows law enforcement officers to determine if a driver has exceeded the legal blood alcohol concentration (BAC) limit.

However, questions often arise about whether drivers can refuse this test and the consequences of doing so. This article provides a comprehensive overview of the alcohol breathalyser test in Singapore, including the legal framework, implications of refusal, and drivers’ rights.

Understanding The Alcohol Breathalyser Test

An alcohol breathalyser test measures a driver’s blood alcohol content (BAC) by analysing their breath. In Singapore, the prescribed BAC limit is 35 micrograms of alcohol per 100 millilitres of breath, equivalent to 80 milligrams of alcohol per 100 millilitres of blood. Drivers suspected of being under the influence of alcohol may be subjected to this test at roadblocks, during routine traffic stops, or after an accident.

Legal Authority To Conduct The Test

Under Section 70 of the Road Traffic Act (RTA), Singapore police officers have the authority to require a driver to undergo an alcohol breathalyser test. If they have a reasonable cause to suspect the driver has committed a drunk driving offence. These tests are typically administered in two stages:

  1. Initial Screening Test: Conducted on the spot using a portable breathalyser device.
  2. Evidential Breathalyser Test (EBT): If the initial test indicates the driver has exceeded the legal limit, they may be taken to a police station for a more accurate EBT.

 

Can You Refuse An Alcohol Breathalyser Test?

The short answer is NO. Refusing a lawful request to take an alcohol breathalyser test is a criminal offence in Singapore. The legal framework treats refusal as seriously as a failed test.

Legal Consequences Of Refusal

According to the Road Traffic Act, refusal to provide a breath sample without a reasonable excuse is equivalent to failing the test. Drivers who refuse may face the following penalties:

  • First Offense:
    • Fine: Between S$2,000 and S$10,000.
    • Imprisonment: Up to 12 months.
    • Mandatory disqualification from driving for at least 2 years.
  • Subsequent Offenses:
    • Fine: Up to S$20,000.
    • Imprisonment: Up to 2 years.
    • More extended periods of driving disqualification.

The rationale behind this strict stance is to ensure that individuals cannot evade accountability by refusing the test.

 

Reasonable Excuses For Refusal

While refusal is generally penalised, the law allows for “reasonable excuses.” Some examples include:

  • Medical Conditions: If the driver has a legitimate medical condition that hinder them from providing a breath sample, such as severe respiratory issues.
  • Improper Procedure: If legal protocols did not administer the breathalyser test or if the officer lacked the authority to demand the test.

Drivers claiming a reasonable excuse must provide evidence, such as medical reports, to support their case.

 

The Importance Of Compliance

Refusing a breathalyser test is not only a legal offence but can also exacerbate the situation for the driver. Courts view refusal as an attempt to obstruct justice, which can lead to harsher penalties.

Compliance with law enforcement during a breathalyser test ensures transparency and allows the legal process to proceed fairly.

 

Legal Recourse And Defenses

If you are charged with refusing a breathalyser test, it is critical to seek legal counsel. An experienced lawyer can:

  • Assess whether the breathalyser test was conducted lawfully.
  • Determine if there were valid grounds for refusal.
  • Represent you in court and mitigate the penalties.

Common Defenses In Refusal Cases

  1. Improper Procedure: The refusal may be defensible if the officer fails to follow the correct legal or procedural steps when requesting the test.
  2. Lack of Reasonable Cause: If the officer did not have sufficient grounds to suspect drunk driving, the request for a breathalyser test may be invalid.

 

The Broader Implications Of Drink Driving

In Singapore, drunk driving is a serious offence with severe penalties designed to deter individuals from endangering lives. The alcohol breathalyser test is a critical tool in this enforcement strategy. Beyond legal consequences, drunk driving poses significant risks, including:

  • Accidents causing injury or death.
  • Higher insurance premiums for convicted individuals.
  • Social and professional repercussions.

 

Preventing Drink Driving

To avoid the risk of drunk driving and the associated penalties:

  1. Plan Ahead: If you plan on drinking, arrange for alternative transport, such as taxis, ride-sharing services, or public transport.
  2. Monitor Alcohol Consumption: Understand your limits and avoid excessive drinking if you intend to drive.
  3. Use Designated Drivers: Assign a non-drinking individual to handle driving responsibilities.

 

Singapore’s Commitment To Road Safety

Singapore’s strict enforcement of drink-driving laws underscores its commitment to maintaining road safety. Data from the Ministry of Home Affairs indicates that drink-driving offences remain a significant concern, and the alcohol breathalyser test plays a pivotal role in identifying and penalising offenders.

According to parliamentary records in Singapore, many drivers have refused to take the evidential breathalyser test over the past decade. Such cases highlight the need for continued public education on refusal’s consequences and compliance’s importance.

 

Key Takeaways

  1. Refusing an alcohol breathalyser test in Singapore is a criminal offence with severe penalties, including fines, imprisonment, and driving disqualification.
  2. The law treats refusal as seriously as a failed test, ensuring accountability for drunk driving offences.
  3. While reasonable excuses for refusal exist, they must be substantiated with evidence.
  4. Compliance with drunk driving laws and law enforcement procedures is essential to maintain public safety and avoid legal complications.

 

Conclusion About Alcohol Breathalyser Tests In Singapore

In Singapore, the alcohol breathalyser test is more than just a tool for enforcing drink-driving laws—it is a cornerstone of the nation’s road safety strategy.

Refusing the test is not viable and can lead to significant legal consequences. Drivers are encouraged to understand their responsibilities under the law and make informed decisions to ensure their safety and that of others.

If you are facing legal issues related to drunk driving or refusal to take a breathalyser test, Tembusu Law is here to help. Our highly experienced criminal defence team can provide expert advice and representation to navigate these complex matters effectively.

Contact us today for a consultation and protect your rights under Singapore’s legal system.

 

Frequently Asked Questions About Alcohol Breathalyser Tests In Singapore

What Happens If I Refuse To Take A Breathalyser Test In Singapore?

Refusing to take a breathalyser test without a reasonable excuse is treated as a criminal offence under the Road Traffic Act. You may face penalties similar to those for drunk driving, including fines of up to S$10,000, imprisonment of up to 12 months, and mandatory driving disqualification for at least 2 years.

Are There Valid Reasons For Refusing A Breathalyser Test?

Yes, certain “reasonable excuses” may justify refusal, such as:

  • Medical conditions that prevent you from providing a breath sample (e.g., severe respiratory issues).
  • Procedural errors by law enforcement officers, such as failing to follow proper protocols. However, such claims must be supported with evidence, like medical reports or legal analysis.

Can I Request A Blood Or Urine Test Instead Of A Breathalyser Test?

No, the initial breathalyser test is mandatory if requested by law enforcement. However, suppose you fail the preliminary breathalyser test. In that case, you may be required to undergo further testing, such as a blood or urine test, for evidential purposes.

What Should I Do If I Am Charged With Refusing A Breathalyser Test?

If you are charged, it is crucial to seek legal advice immediately. An experienced lawyer can:

  • Assess whether the test was conducted lawfully.
  • Determine if you had valid grounds for refusal.
  • Represent you in court to mitigate penalties or challenge the charges if appropriate.

About the author

About the author

Tembusu Law

Jonathan is the Founder and Managing Director of Tembusu Law. He is also the founder of LawGuide Singapore, a prominent legaltech startup which successfully created and launched Singapore’s first legal chatbot in 2017.

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