Appeal against Conviction by Choon Seng Gan against HMA (High Court of Justiciary)

Factual and Procedural Background

The Appellant was convicted at Glasgow Sheriff Court for being concerned in the supplying of cannabis, contrary to section 4(3)(b) of the Misuse of Drugs Act 1971. The appeal challenges the conviction on grounds relating to jury directions concerning the Appellant's knowledge of involvement in the supply and the omission of directions on the statutory defence under section 28 of the 1971 Act. The underlying facts, agreed by parties, involved police stopping the Appellant driving a minibus with a passenger, Mr Zheng, and discovering suitcases containing a large quantity of cannabis. The Appellant claimed he was an unofficial taxi driver hired to transport Mr Zheng and his belongings, unaware of the presence of drugs in the suitcases. The sheriff gave standard directions on the law, including on the special defence of incrimination and the elements of the offence, and the case proceeded to conviction.

Legal Issues Presented

1. Whether the sheriff misdirected the jury by failing to clearly instruct that the Crown must prove the Appellant knew he was involved in supplying prohibited drugs or at least knew his involvement was in an illegal supply operation.
2. Whether the sheriff erred by failing to give directions on the statutory defence under section 28 of the Misuse of Drugs Act 1971, despite the defence not having been raised before the sheriff.

Arguments of the Parties

Appellant's Arguments

• The sheriff failed to give clear directions that the Crown must prove the Appellant's knowledge of involvement in supplying illegal drugs or an illegal supply operation.
• The statutory defence under section 28(2) was engaged by the Appellant’s evidence that he was unaware of the cannabis in the suitcases, and the jury should have been directed accordingly, despite the defence not being formally raised at trial.
• Relied on authorities including Salmon v HM Advocate (1999 JC 67) and R v McNamara (1988) to support the need for such directions.

Crown's Arguments

• The Crown must prove the Appellant was knowingly involved in an operation to supply something, and that the substance supplied was cannabis; it is not necessary to prove the Appellant knew the substance was an illegal drug.
• The sheriff's directions were appropriate and consistent with established case law, including Salmon and Aiton.
• The statutory defence under section 28 was not engaged as the Appellant’s defence was one of simple denial of involvement, not raising any issue that would invoke section 28.
• Authorities cited included Aiton, Hattie v HM Advocate ([2022] HCJAC 13), and others supporting the Crown’s position.

Table of Precedents Cited

Court's Reasoning and Analysis

The court carefully examined the statutory framework of the Misuse of Drugs Act 1971, focusing on section 4(3)(b) and the statutory defence under section 28. It analyzed the elements of the offence, emphasizing that the Crown must prove the accused was knowingly involved in a supply operation and that the substance supplied was a controlled drug, but the accused need not know the exact nature of the drug. The court reviewed prior case law, especially Salmon, to clarify the evidential and legal burdens relating to section 28 defences.

The court found that the sheriff’s directions correctly instructed the jury on the knowledge element required for conviction and on the general effect of exculpatory evidence, including the special defence of incrimination, albeit the latter was legally unfounded but favourable to the Appellant.

Regarding the omission of directions on the section 28 defence, the court acknowledged it would have been prudent for the sheriff to clarify whether section 28 was in issue, but noted that the defence had not been formally raised at trial. The court identified that the Appellant’s evidence raised a potential section 28(2) defence concerning his lack of knowledge or suspicion that the suitcases contained controlled drugs.

Despite this, the court concluded that the absence of a section 28(2) direction did not result in a miscarriage of justice. This conclusion was based on the totality of the sheriff’s directions emphasizing reasonable doubt, the favourable but erroneous direction on incrimination, and the jury’s verdict indicating rejection of the Appellant’s claim of ignorance regarding the supply operation. The court reasoned that the jury’s rejection of the Appellant’s evidence made it unlikely that a section 28 direction would have affected the verdict.

Holding and Implications

The court REFUSED the appeal, upholding the conviction.

The direct effect is that the Appellant remains convicted of being concerned in the supplying of cannabis contrary to the Misuse of Drugs Act 1971 section 4(3)(b). No new legal precedent was established, and the decision reinforces the established principles regarding knowledge requirements and the application of section 28 defences in drug supply cases. The judgment clarifies the circumstances under which section 28 directions are necessary and confirms that failure to give such directions will not necessarily amount to a miscarriage of justice if the overall directions adequately protect the accused’s rights.