Singapore has introduced two new road traffic offences aimed at addressing particularly dangerous forms of driving:
- Purposeful endangerment using a vehicle causing death or grievous hurt
- Driving after consuming controlled drugs, intoxicating substances or psychoactive substances
These changes form part of the Road Traffic (Miscellaneous Amendments) Bill, which was passed by Parliament on 4 August 2026. The amendments are intended to strengthen road safety and close gaps in the existing law. You may wish to refer to our previous article for more information on the other proposed amendments to Singapore’s road traffic laws.
What is the New Offence of Purposeful Endangerment?
The new offence targets drivers who deliberately use their vehicles in a way that endangers another person, where the conduct results in death or grievous hurt.
The key feature is the driver’s purposeful conduct. This distinguishes the offence from an ordinary traffic accident or even conventional dangerous driving, where the prosecution generally focuses on whether the driver’s manner of driving was objectively dangerous and showed disregard for the safety of others.
For example, one such situation is where a driver deliberately drives closely behind a motorcyclist and repeatedly sounds the horn to endanger the motorcyclist. If the driver subsequently loses control and causes the motorcyclist to crash and die, the conduct may fall within the new offence.
The driver does not necessarily have to intend to injure the cyclist. What matters is the deliberate act of using the vehicle to put the cyclist in danger and the resulting death or grievous hurt.
How is purposeful endangerment different from dangerous driving causing death?
Under the existing law, a driver who causes someone’s death through dangerous driving may be convicted of dangerous driving causing death. For a first-time offender, the maximum imprisonment term is currently 8 years.
However, a driver cannot ordinarily be convicted of murder or culpable homicide not amounting to murder, merely because he deliberately drove dangerously. For those offences, it must be proved beyond reasonable doubt that the driver intended to kill, or knew that his actions were likely to cause death.
The new purposeful-endangerment offence therefore fills an important gap. It is aimed at conduct that is more blameworthy than ordinary dangerous driving, but which may not meet the legal requirements for murder or culpable homicide.
Take, for example, the following scenarios:
In the first, a driver is travelling at excessive speed, loses control at a bend and fatally injures a pedestrian. Depending on the circumstances, this could amount to the offence of dangerous driving causing death.
In the second, a driver deliberately steers towards a pedestrian to frighten or endanger them, and the pedestrian is seriously injured. This is the type of deliberate conduct that the new purposeful-endangerment offence is intended to address.
The difference is therefore not simply how dangerous the driving was, but also whether the driver deliberately used the vehicle to endanger another person.
The offence also covers grievous hurt, rather than death alone. This recognises that deliberately dangerous conduct can cause catastrophic injuries (e.g. leaving the victim in a permanent vegetative state), even where the victim survives.
What are the penalties for the offence of purposeful endangerment?
A person convicted of the offence of purposeful endangerment causing death or grievous hurt may face:
- Imprisonment of up to 15 years
- Caning, at the court’s discretion
- A fine
- Lifetime disqualification from driving, unless the court finds special reasons not to impose it
- If lifetime disqualification is not imposed, a mandatory disqualification of at least 10 years.
The court may also order the forfeiture of the vehicle used to commit the offence.
These penalties are significantly more severe than those applicable to a first-time offender convicted of dangerous driving causing death under the existing legislation. This reflects the greater culpability associated with intentionally putting another person in danger.
What is the New Drug-Driving Offence?
The second new offence concerns driving after consuming certain controlled or intoxicating substances.
Under the existing law, a person who drives while under the influence of a drug, psychoactive substance or intoxicating substance commits an offence if the substance has impaired the person’s ability to control the vehicle. In other words, enforcement currently requires proof that the driver was unfit to drive and incapable of having proper control of the vehicle.
The new offence changes this approach.
Under the new regime, a driver can be liable if controlled drugs, intoxicating substances or psychoactive substances are detected in the driver’s blood, regardless of:
- The quantity detected; or
- Whether there is evidence that the driver’s driving was actually impaired.
The substances covered are those defined under the Misuse of Drugs Act, Intoxicating Substances Act and Tobacco and Vaporisers Control Act.
How is the new drug-driving offence different from the existing law?
The main difference lies in what the prosecution needs to prove.
Under the existing offence, it is not enough to show that a driver had taken a drug or other intoxicating or psychoactive substance. The prosecution must also show that the substance affected the driver to the point where they were unable to properly control their vehicle.
For example, suppose a driver takes a psychoactive substance and later drives while feeling extremely drowsy or disoriented. If the prosecution can show that the driver’s condition was so affected that they could not properly control their vehicle, the driver may be guilty of the existing offence.
The new offence works differently. The prosecution does not need to show that the driver’s driving was actually impaired. Instead, the new offence is based on the detection of specified substances in the driver’s blood, subject to the requirements and exceptions in the legislation.
For example, a driver may take a controlled substance and later drive home without appearing noticeably impaired. If the substance is detected in the driver’s blood, the driver may potentially be liable under the new offence even if there is no clear evidence that the substance affected their ability to drive.
Put simply, the existing offence looks at whether the substance has affected the driver’s ability to control the vehicle, while the new offence looks at whether a specified substance is present in the driver’s blood, subject to the statutory requirements and exceptions.
This means that the prosecution will no longer need to establish that the driver’s ability to control the vehicle was impaired in order to make out the new offence.
Would the consumption of prescription medication fall under this offence?
The new offence does not mean that taking prescription medication and driving will automatically be illegal or criminalised.
For example, someone may take medication prescribed by their doctor, follow the prescribed dosage and be unaware that the medication could affect their driving.
However, drivers should still be careful. A person who consumes any form of drug, including medication, and is then impaired to the extent that they are incapable of properly controlling their vehicle may still be liable under the existing offence of driving while under the influence of drink, a drug, a psychoactive substance or an intoxicating substance under the Road Traffic Act.
The practical takeaway is that drivers should not assume that medication is safe to take before driving simply because it was prescribed by a doctor. If a medication may potentially affect their ability to drive, they should always check with their doctor or pharmacist and follow any warnings or instructions given.
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The proposed new offences strengthen Singapore’s laws against particularly dangerous driving by targeting motorists who deliberately endanger others and those who drive after consuming specified drugs or other substances.
The changes broaden the circumstances in which serious road traffic offences may be committed, alongside wider reforms such as increased penalties for dangerous driving causing grievous hurt and lower prescribed alcohol limits for drink-driving.
If you are being investigated for or have been charged with a road traffic offence, or are unsure how the proposed changes may affect your legal rights and obligations, you should consider seeking legal advice from a criminal defence lawyer. A criminal defence lawyer can explain the applicable laws, advise you on your options, and represent you where necessary.
