Can an Acquittal be Reversed in Singapore?

Last updated on August 7, 2026

For an accused person, an acquittal in court may feel like the end of the road. The judge pronounces “not guilty”, and the accused person walks out of court expecting the matter to be over. However, under Singapore law, an acquittal is not always the final word. The prosecution has the right to appeal against the acquittal, and if the appeal succeeds, the appellate courts have the power to reverse it and reach a very different conclusion.

This issue has come into the spotlight following a High Court decision reversing the acquittal of three women who had earlier been cleared at trial of charges relating to the organisation of a procession near the Istana. The High Court allowed the prosecution’s appeal, set aside the District Court’s acquittal and convicted the three accused. The case has prompted renewed public interest in how the appeal process works in Singapore, particularly when an acquittal can be reversed.

This article explains the following:

What is an Acquittal and is It Final?

An acquittal is a formal court finding that an accused person is not guilty of the charge brought against them. In a criminal trial in Singapore, the prosecution bears the burden of proving the accused’s guilt beyond a reasonable doubt. If the prosecution is unable to discharge this burden – for example, because key evidence is unreliable, witnesses are not credible, or the legal elements of the offence cannot be made out – the court will acquit the accused.

An acquittal carries strong legal weight. Once acquitted, the accused is free to go. The case is closed and the person cannot be charged again for the same crime. However, an acquittal is not always the final word. Where the law permits, the prosecution may appeal against the acquittal to a higher court, and that higher court may decide to reverse it.

You may refer to our other article for a more detailed discussion of what an acquittal is, and how an accused may obtain one in Singapore.

Can the Prosecution Appeal an Acquittal in Singapore?

Yes, the prosecution can appeal against an acquittal subject to the statutory rights of appeal and the procedural requirements set out in the Criminal Procedure Code (CPC). Sections 374 to 394 of the CPC govern criminal appeals, including appeals against acquittals.

Specifically, section 374(3) of the CPC provides that the Public Prosecutor may appeal against any judgment, sentence or order of a trial court in a criminal case, including an order of acquittal. This means that even after an accused is acquitted at first instance – whether by a Magistrate’s Court, District Court or the General Division of the High Court – the prosecution may take the case up on appeal to the next higher court.

To bring an appeal, the prosecution must follow certain procedural requirements:

Notice of appeal: A notice of appeal must be filed within 14 days from the date of the order being appealed against (i.e. the acquittal).
Petition of appeal: After receiving the trial court’s grounds of decision, the prosecution must file a petition of appeal, also generally within 14 days from service of the grounds of decision (or such longer period as the court may allow).
Contents of the petition: The petition must clearly set out the grounds of appeal – that is, the specific errors that the prosecution says the trial court made. These typically include errors of law, errors of fact, or procedural irregularities.
Service on the accused: Copies of the notice and petition of appeal must be served on the accused (or their counsel), so that the accused knows the case being made on appeal and can prepare a response.

If these timelines are missed, the appeal can be struck out, and the acquittal stands. The accused’s lawyers will often scrutinise compliance with these procedural requirements as the first line of defence on appeal.

What Does it Mean to Reverse an Acquittal?

To “reverse” an acquittal means that a higher court sets aside the trial court’s finding that the accused is not guilty. In effect, the appellate court steps in and substitutes its own decision for that of the trial court. Depending on the case, the appellate court may go on to convict the accused, order a retrial, or remit the matter back to the lower court for further consideration.

Grounds for reversing an acquittal

The appellate courts do not overturn or reverse a trial court’s decisions so easily, particularly where they involve assessment of witness credibility. However, an acquittal may be reversed where the appellate court is satisfied that the trial court fell into one or more of the following errors: (1) error of law, (2) serious error in findings of fact, and (3) procedural irregularity. The first two grounds are more commonly used in arguments for the reversal of an acquittal.

1. Error of law

Error of law refers to situations where the trial court has misapplied or misunderstood the law. This could mean applying the wrong legal test (for example, requiring a higher standard of proof than “beyond reasonable doubt”, or misstating the elements of the offence). This could also involve misinterpretation of a statutory provision (for example, improperly reading words into the legislation that are not there, or adopting an interpretation that is inconsistent with the statutory purpose).

One example of the court overturning an acquittal on this ground was a case in February 2024 – it involved three women who were charged with organising a procession in a prohibited area under the Public Order Act. They contested the charges in a joint trial that began in July 2025, and were acquitted by the district judge. The district judge found that the prosecution had failed to show that the women ought to have known the route for their procession was in a prohibited area. The prosecution appealed, arguing that the district judge had made an error of law, conflating “actual knowledge” and “ought reasonably to know”, and had only applied his mind to factors relevant to “actual knowledge”. The High Court agreed that the district judge had made an error of law by failing to apply the correct test for the phrase “ought reasonably to know”; the acquittal was overturned, and all three women were convicted and fined $3,000 each.

Errors of law are usually the most straightforward ground on which an appellate court will intervene, because they do not depend on re-evaluating the credibility of witnesses.

2. Serious error in findings of fact

Appellate courts are generally cautious about overturning factual findings, especially those based on the trial judge’s assessment of witnesses. However, an acquittal may be reversed where the factual findings are plainly wrong or against the weight of the evidence. Examples include:

Material evidence that was overlooked, misread, or given no weight without justification;
Inferences drawn from the evidence that no reasonable tribunal could have reached;
Findings that contradict undisputed objective evidence (such as CCTV footage, documentary records, or scientific evidence).

The following case illustrates how an appellate court may overturn the trial judge’s decision based on the finding that the trial judge had overlooked material evidence and arguments from the prosecution. In Public Prosecutor v Pay Teow Heng and Pek Lian Guan (2026), two senior executives at a construction firm were charged with bribing a former Land Transport Authority deputy group director. Following a trial, the district judge acquitted both men in October 2024, ruling that the incriminating statements recorded by the Corrupt Practices Investigation Bureau were “inaccurate” and “unreliable”. The prosecution appealed, arguing that the judge had not independently evaluated the evidence and had simply reproduced the defence’s written submissions in their entirety and presented them as his own findings, while failing to engage with the prosecution’s case. The Chief Justice agreed, consequently setting aside the acquittals and ordering a fresh hearing.

One other example of the appellate court finding that the prosecution had not proved its case beyond a reasonable doubt is Public Prosecutor v Parti Liyani. Parti was an Indonesian domestic worker who was abruptly dismissed and subsequently charged with stealing over $34,000 worth of items from various family members. The High Court ultimately acquitted Parti, ruling that the prosecution had not proved its case beyond reasonable doubt – in large part because her ex-employer was found to have had an improper motive for filing the police report. They did so just days after Parti threatened to complain to the Ministry of Manpower about being illegally deployed to clean a separate residence and office.

3. Procedural irregularity

An acquittal may also be reversed where there has been a serious procedural irregularity that has led to a failure of justice. This includes departing from the prescribed rules that govern how a criminal trial must be conducted (e.g., allowing the trial to proceed before the Public Prosecutor’s consent to prosecute had been obtained, or withholding of key evidence that would have impacted the final decision). Not every procedural slip will justify reversing an acquittal – under section 423 of the CPC, the irregularity must be significant enough to have affected the outcome of the case, causing a failure of justice.

Imagine a hypothetical scenario, for instance – an electronics importer is acquitted of falsifying shipping manifests to evade trade taxes under section 128 of the Customs Act. After the verdict, it was discovered that the original, uncorrupted server logs that contained critical information about the true transactions were not disclosed during the trial. This failure of disclosure may constitute a serious procedural irregularity significant enough to have caused a failure of justice, fundamentally affecting the integrity of proceedings, as it caused the trial judge to rule on the case without access to an incomplete set of facts. As a result, the appellate court may set aside the acquittal and order a fresh re-trial with all critical evidence made available for the judge to make a fresh ruling.

Possible Outcomes of Reversing an Acquittal

Where an appellate court is satisfied that an acquittal should be reversed, it has a range of options under section 390 of the CPC. In broad terms, the court may:

Enter a conviction in place of the acquittal and proceed to sentence the accused;
Order a retrial before the same or another court of competent jurisdiction; or
Remit the case back to the trial court with directions (for example, to make further findings on specific issues).

The outcome chosen will depend on factors such as how clearly the evidence points to guilt, whether further fact-finding is needed, and considerations of fairness to the accused. These outcomes are discussed in greater detail in the next section.

What Happens After an Acquittal is Reversed?

When an acquittal is reversed, the consequences for the accused can be significant. The most common outcomes are conviction and sentencing, a retrial, or further appeals.

Conviction and sentencing

Where the appellate court is satisfied that the evidence establishes guilt beyond a reasonable doubt, it may proceed to convict the accused and impose a sentence directly, without sending the case back for retrial. Per section 390(1)(b) of the CPC, the appellate court can sentence the accused in accordance with the prescribed punishment under the law, taking into account aggravating and mitigating factors such as:

The seriousness of the offence and the harm caused;
The accused’s antecedents (or lack thereof);
Any restitution or remorse shown;
The public interest and the need for general deterrence.

Sentencing on appeal generally follows the same principles as sentencing at first instance, including the application of any sentencing guidelines or benchmarks set down by the High Court or Court of Appeal.

Retrial

In some cases, the appellate court will not be in a position to enter a conviction directly and may instead order a retrial to avoid substantial injustice. There is no one definition of what “substantial injustice” looks like, and this depends on the facts of the case. That said, there are some general guidelines:

The appellate court must first establish that a specific error occurred during the original proceedings. For instance, important factual findings have not been made.
The court must then evaluate whether this error significantly and tangibly affected the fairness of the proceedings (e.g., there is a strong indication that the absence of certain evidence materially affected the outcome).
Ultimately, the court maintains the authority to decide if a retrial is warranted. The Singapore courts have repeatedly emphasised that ordering a retrial is a serious step. To preserve the finality of proceedings, retrials are generally rare, and they can only be ordered if it serves the public interest of fairness and justice.

The issue of ordering a re-trial was considered in the case of Liau Beng Chye v Chua Wei Jiea [2025]. The case arose from an unpaid 2011 personal loan between a borrower, Mr. Liau, and a licensed moneylending company, which ballooned into a multi-million dollar debt over ten years. To settle a portion of this debt, Mr. Liau transferred his co-owned residential home to the company’s director, Mr. Chua, for $2.1 million under an agreement that allowed him to continue living there as a tenant. When the final tenancy agreement expired in 2022, Mr. Liau refused to leave, prompting Mr. Chua to file a District Court lawsuit for eviction and double rent.

In the trial court, the district judge ruled in favour of the landlord Mr Chua, granting him vacant possession of the property and double rent, for the period the tenants held over, as well as damages. Mr Liau argued that the entire transaction, including the sale of the home to the landlord – was “tainted by illegality” because of the extremely high interest rates charged by the landlord’s moneylending company. However, the district judge dismissed this defence, finding no weight in it because the moneylending company had not been formally joined as a party to the lawsuit. On appeal, the High Court overturned this decision and ordered a complete retrial.

The High Court judge emphasised that trial judges must look past mechanical procedural technicalities when the facts strongly pointed towards potential illegality. Given the significant extent by which the initial loan had ballooned because of the astronomical interest rates, the High Court found that the district judge’s failure to look into the illegality defence constituted a critical error.

Further Avenues of Appeal

A reversal of an acquittal is not necessarily the end of the road for the accused. There may still be further avenues of challenge, although these are limited and subject to strict requirements. Sections 394H and 397 of the CPC, together with the Supreme Court of Judicature Act 1969, set out the framework for further appeals to the Court of Appeal and applications for a criminal reference on questions of law of public interest.

Criminal reference

Where the High Court has heard a Magistrate’s Appeal or a District Court appeal, an accused who has been convicted on appeal may apply, under section 397 of the CPC, for a question of law of public interest to be referred to the Court of Appeal.

To illustrate this, we can refer to the case of Takkaki Masui and another v Public Prosecutor. In this case, two senior employees of a Japanese company collaborated with a local Singapore distributor to share profits from industrial flour sales, pocketing over $2 million in bribes. After being convicted of engaging in a conspiracy to corruptly take bribes, the two Japanese employees appealed, arguing that the various sums they had already paid out should be deducted from the total bribe amount used to calculate their penalty under the Prevention of Corruption Act (PCA), as they were no longer enjoying these sums. The prosecution filed a criminal reference to the Court of Appeal, to show that:

The question is a question of law (rather than a re-argument on the facts). In this case, the question of law was: does the penalty provision in the PCA exist to punish offenders, or simply strip them of their ill-gotten gains?
The question arose in the proceedings. In this case, the High Court had to decide how to calculate the penalty for the two convicted persons. There were contradicting High Court authorities on the proper interpretation of the PCA.
The determination of the question by the High Court has affected the case, and is one of public interest. In this case, the outcome of the question would have a public interest. Per the Court of Appeal’s decision, the penalty provision was designed to prevent corrupt recipients from retaining their ill-gotten gains, but not to punish them twice over. This sets a clear rule on how to calculate penalties in future corruption cases.

Criminal references are intended to answer important legal questions that have implications beyond the immediate case, such as the proper interpretation of a statute or the correct legal test to apply. You may refer to our other article for more information on how to file a criminal reference in Singapore.

Review of concluded appeals

In rare and exceptional cases, the accused may apply under section 394H of the CPC to review a concluded criminal appeal where there is “sufficient material” showing a miscarriage of justice. For example, there may be new and compelling evidence that was not available at the time of the appeal, or new legal arguments made. The threshold for such reviews is deliberately high. Courts rarely reopen concluded criminal appeals, because it undermines the legitimacy of the judicial process, and takes up additional resources.

Nonetheless, there has been a case in Singapore where new legal arguments allowed the reopening of a concluded appeal. In Gobi a/l Avedian v Public Prosecutor , Gobi, a Malaysian, was arrested at Woodlands Checkpoint in 2014 for carrying over 40g of diamorphine. The High Court accepted his defence that he actually believed the drugs were mild “disco drugs” mixed with chocolate, based on assurances from his contact. He was thus convicted of the lesser charge of attempting to import a Class C controlled drug under the Misuse of Drugs Act (MDA), as opposed to the capital charge of importing not less than 40.22g of diamorphine, a Class A drug, and was initially sentenced to 15 years’ imprisonment and 10 strokes of the cane. However, the prosecution appealed, and the Court of Appeal reinstated the death penalty, interpreting the defense as Gobi being wilfully blind; by failing to verify what he was carrying despite the suspicious circumstances, he had deliberately turned a blind eye.

The separate Court of Appeal decision that changed the trajectory of Gobi’s case arose from the 2019 landmark ruling in Adili Chibuike Ejike v Public Prosecutor. That case concerned a Nigerian national who was acquitted of capital drug trafficking after the Court of Appeal ruled he could not have known about nearly 2kg of methamphetamine hidden inside his suitcase lining, as even a thorough inspection would not have revealed it. The Court of Appeal in this decision drew a strict line between actual knowledge and wilful blindness, ruling that the statutory presumptions under the MDA could not be used as a shortcut to prove the latter. Being wilfully blind (i.e., just falling short of actually knowing that the drugs were diamorphine) required a very high threshold – the accused must have a suspicion so strong that it bordered on actual knowledge.

Because the Adili decision was handed down in 2019 – after Gobi had already been sentenced to death under the old interpretation of the law, Gobi’s lawyers realised that the legal rule used to sentence him to death was no longer valid and filed a review application under the CPC. The court found that its previous decision could not stand, as Gobi was never given the opportunity to respond to the argument that he was wilfully blind. The death sentence was set aside, and his original term of imprisonment was reinstated.

Direct appeals where the High Court was the trial court

Where the General Division of the High Court was itself the trial court, an appeal goes to the Court of Appeal under the Supreme Court of Judicature Act 1969 and section 378 of the CPC. In such cases, the accused has a direct right of appeal to the apex court, which can re-examine both the conviction and the sentence. These appeals arise most commonly in capital cases, such as drug trafficking, as the High Court usually presides over the most serious criminal offences at first instance.

For example, in Shen Hanjie v Public Prosecutor, the appellant appealed his conviction by the High Court on a charge of trafficking in diamorphine found in a drawer in his bedroom. His primary defence was that he was merely safekeeping the drugs for another person and would return them when that person’s men came to collect the drugs. The High Court rejected this defence and imposed the mandatory death penalty, finding that the appellant was not just a courier. The Court of Appeal dismissed the appeal, ruling that the evidence of repacking and prior distribution of the drugs was a clear indicator of trafficking.

Practical Implications for the Accused

Even after a successful trial outcome, the prosecution retains the right to appeal. Note that the appeal window is 14 days from the date of the order. Bail conditions or undertakings may continue to apply. Until the appeal window closes, the case is not truly over. From the accused’s perspective, this means that you might:

Continued legal exposure: Even after a successful trial outcome, the prosecution retains the right to appeal. Note that the appeal window is 14 days from the date of the order. Bail conditions or undertakings may continue to apply. Until the appeal window closes, the case is not truly over.
Need ongoing legal representation: Since there is always a possibility of an appeal, you might need to retain your defence counsel. That being said, there is always an option for you to seek and appoint a new lawyer to defend you. You have the right to choose and are not forced to maintain the same lawyer. Defence counsel will need to monitor whether the prosecution files an appeal and prepare a response promptly if it does. Appellate timelines are very tight, and the groundwork is key – this includes reviewing the grounds of the decision once they are released and identifying the strongest arguments.
Need to consider the emotional and reputational impact: Going through a second round of criminal proceedings can be stressful, both emotionally and reputationally. Accused persons and their families should be prepared for this possibility, and consider how to manage their personal affairs in the meantime.

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An acquittal is a powerful outcome. In Singapore, the prosecution has a statutory right to appeal against an acquittal under the CPC, and the appellate courts have express powers to reverse an acquittal where they are satisfied that the trial court committed an error of law, made a serious error in its findings of fact, or fell into a procedural irregularity that affected the outcome.

Where an acquittal is reversed, the appellate court may convict the accused and proceed to sentence, order a retrial, or remit the case for further consideration. The accused, in turn, may have further avenues to challenge the reversal – through a criminal reference, a review of a concluded appeal, or, in some cases, a direct appeal to the Court of Appeal – though these are subject to strict requirements.

If you or someone you know has been charged with a criminal offence, or has been acquitted and is concerned about the possibility of an appeal, it is important to seek advice from a qualified criminal defence lawyer as early as possible. A criminal defence lawyer can help you to:

assess the strength of the prosecution’s case and identify possible defences;
advise on the procedural steps and timelines for any appeal (whether brought by you or by the prosecution);
prepare written submissions and represent you at appeal hearings;
explore further avenues of challenge, such as a criminal reference or a review of a concluded appeal, where appropriate; and
manage the wider personal, financial and reputational implications of being involved in extended criminal proceedings.

Early and proper legal advice can make a significant difference to the outcome – both in defending against an appeal by the prosecution, and in preserving the accused’s rights at every stage of the criminal process.