Understanding Drug Offences & The Misuse Of Drugs Act

The Misuse of Drugs Act 1973 is the primary statute that governs drug offences in Singapore; it grants various government agencies enforcement powers to curb the trafficking, possession and consumption of illegal substances.  

Why was the Misuse of Drugs Act introduced? 

Singapore’s first dedicated drug enforcement agency was set up on 12 November 1971 to contain a burgeoning drug crisis. The creation of the Central Narcotics Bureau (CNB) also came on the heels of a worrying shift in drug consumption patterns and trends. The authorities had discovered that the drug problem was no longer isolated to older Chinese men who were hooked on opium and morphine; younger Singaporeans were taking recreational drugs like methaqualone (MX) and cannabis. Even schoolgirls were said to be popping MX pills. 

In 1972, heroin quietly entered the Singapore illicit substances market. In 1973, the Misuse of Drugs Act (MDA) was passed on the cusp of a full-blown heroin epidemic. Heroin arrests were on a sharp incline, going from a grand total of 4 in 1972 to 2,263 in 1975. In 1977, a combination of CNB, police and National Service personnel were tasked to detect and commit heroin users to Drug Rehabilitation Centres under Operation Ferret. 

Misuse of Drugs Act: Classification System 

It’s not always easy to determine if a given substance falls under the MDA’s purview. For example, GLP-1 drugs, which can control blood sugar and result in weight loss, are regulated by the Health Sciences Authority. Controlled drugs and psychoactive substances are governed by the MDA; the penalties for consumption, trafficking or possession often depends on how the substance is classified in the First Schedule.  

Class A, B & C drugs (Non-exhaustive) 

Source: First Schedule MDA  

Apart from the drug in question’s classification, the severity of punishment may also be influenced by factors such as whether the accused has a history of similar offences as well as the quantity of drugs involved. 

Types of recreational drugs  

According to the CNB’s Annual Statistics 2025 Report, the top three drugs most commonly found on offenders are methamphetamine, heroin and cannabis. Individuals arrested for the possession, trafficking, or consumption of methamphetamine made up 64% of all drug offenders. 

Source: CNB 

More women and youth arrested under Misuse of Drugs Act 

Credit: Tima Miroshnichenko

Just like in the 1970s, drug patterns and trends are changing all the time. CNB has flagged an upward trend in the number of women and youth drug offenders. In 2024, there were a total of 478 female drug offenders. This number rose to 615 in 2025. Meanwhile, 165 youth offenders below 20 years of age were arrested in 2024. In 2025, this number rose to 185.

On 15 July 2026, The Straits Times reported that two teens had died after taking home-made methamphetamines. In May 2026, the CNB arrested a 12-year-old girl for drug consumption and subsequently conducted a nationwide raid. A 2023 Institute of Mental Health survey determined the mean age of a first-time drug offender to be 15.9 years old. 

Why do people take drugs? 

A 2024 Channel News Asia report cited curiosity, peer pressure and mental health issues among the reasons for drug use among younger offenders. The same report also links drug use disorders with other issues, such as trauma, immense stress and the inability to cope. 

A 2024 article published by ANNALS, the official journal of the Academy of Medicine in Singapore, also raises the possibility that some youth may turn to drugs to self-medicate. The same article notes that although there is an increasing prevalence of “anxiety disorders, chronic insomnia and depression” among individuals, some may be reluctant to seek help.  

Section 8A Misuse of Drugs Act 

The reach of the Misuse of Drugs Act extends beyond Singapore. That is, if you happen to be a Singapore citizen (SC) or permanent resident (PR). Section 8A(2) of the MDA states that a SC or PR who is found to have smoked, administered to themself or otherwise consumed a controlled or specified drug overseas will be dealt with as if that offence was committed in Singapore. 

Together with Section 31(1) of the MDA, which empowers any CNB, immigration or police officer not below the rank of sergeant to subject a suspect to a urine test—if there is reasonable suspicion of drug-related offences—it’s not hyperbole to say that any drug use outside of Singapore comes with increased risks. What happens if you refuse to provide a urine sample? You could be hit with a maximum imprisonment term of up to 10 years, or be fined a sum not exceeding $20,000 or both. 

Case Study 1: A 25-year jail sentence  

In this anonymised case, A was sentenced a jail term of 25 years for importing drugs into Singapore. The offence carries a minimum jail term of 20 years and 15 strokes of the cane. The maximum jail term is 30 years or life; the details of corporal punishment remain unchanged.  

Sentencing considerations  

• Due to the amount of drugs involved, the higher band of a sentencing framework set out in a prior case was applied.  

• A’s culpability was assessed to be “relatively low”, as he had been acting on the instructions of another individual. 

• A was a first-time offender with only one other charge of drug consumption being taken into consideration. 

Q&A with a criminal lawyer 

To further understand the facts and the outcome of this case, we speak to criminal law specialist Gino Hardial Singh.  

Q1. Can you explain to the general public the concept of culpability and why the judge agreed that A’s culpability was “relatively low”? 

Answer: Culpability seeks to define an offender's blameworthiness according to his actions. For example, when assessing culpability for a traffic offence, factors such as breath alcohol concentration and reasons for driving may be taken into consideration. A is deemed to have relatively low culpability as he was acting on another individual's orders. 

Q2. One of the sticking points in the case is the storage compartment in the accused's vehicle where the drugs were found. Do you think the sentence would have been manifestly different if the accused had not claimed that it was malfunctioning, or kept silent when asked what the packages were? 

Answer: It is possible the court may have looked more favourably upon A if he had cooperated from on the outset. Whether a slightly more favourable outlook would have materially altered his prison term of 25 years—now that is the real question. The number of years is usually pegged to circumstances and the amount of drugs.

Q3. The prosecution was asking for a jail term of 26 years and you were asking for 24. The judge sentenced your client to 25 years’ imprisonment but had no discretion when it came to corporal punishment. How do you feel about the outcome of this case? 

Answer: The judge's sentencing was informed by authorities such as Vashan and Public Prosecutor v Hari Krishnan Selvan. Punishment for drug possession was enhanced in 2023 from a maximum of 10 to 30 years' imprisonment; caning was also introduced for offences above certain thresholds. My view is that if he had been sentenced before 2023, things might have turned out quite differently for him. 

Case study 2: Drugs from the dark web 

Credit: Brett Sayles

B was a 22-year-old international student attending university in Singapore. One day, B ordered a Class A drug from the dark web. The parcel was intercepted by the CNB and traced back to him. 

Import and export of controlled drugs 

B was facing a serious charge of importing a controlled drug into Singapore. This is an offence that carries a minimum jail term of 5 years with the possibility of up to 5 strokes of the cane for first-time offenders. 

Upon Gino's recommendation, B and his parents were interviewed by a qualified psychiatrist who was well-versed in producing medico-legal and forensic reports in a legal setting. The doctor documented B’s longstanding history of mental health struggles in a forensic report, along with a troubling family history linked to serious self-harm. As a result, B was let off with a stern warning and a re-entry ban of an unspecified length. 

When do you need a criminal lawyer for drug-related offences?  

Maybe your family member has been detained at the airport on suspicion of drug-related offences. Maybe the CNB has invited you for an interview and has also requested a urine sample from you. Whatever the case may be, all criminal cases involving drug offences can have serious consequences. It’s never too early to engage defence counsel for a criminal case involving drugs. 

 A criminal lawyer will be able to:  

• Inform you of your legal obligations during interviews with the police or the CNB. 

• Make written representations to the Attorney General’s Chambers before any charges are filed, to plead for charges to be dropped or to seek charges of a lower severity. 

• Depending on your personal circumstances, counsel may be able to request an Enhanced Direct Supervision Order in lieu of a custodial sentence. 

It is important to note that if an accused person denies any consumption of drugs but tests positive, CNB will not make an order for them to be sent to Drug Rehabilitation Centre. Instead, the accused person will face an increased risk of getting charged in court. 

If you suspect you or your loved one may be under investigation for drug-related offences, contact Gino now for a confidential discussion.