He Kaw Teh v The Queen [1985] HCA 43 is a High Court of Australia case that clarified the need to prove guilty knowledge (mens rea) in serious drug offences under the Customs Act. The details of the case are given below:
| Case Name & Citation: He Kaw Teh v R [1985] HCA 43; (1985) 157 CLR 523 |
| Date: 11 July 1985 |
| Court: High Court of Australia |
| The bench: Gibbs C.J., Mason, Wilson, Brennan and Dawson JJ. |
| Legal Focus: Criminal Law, Mens rea, Statutory offence, Importing prohibited imports, Having possession of prohibited imports |
Facts: He Kaw Teh v The Queen
He Kaw Teh flew from Kuala Lumpur to Melbourne in 1982. Customs officers found 2.788 kg of heroin hidden in a false bottom of his bag.
He was charged under the Customs Act 1901 (Cth) with importing heroin (s.233B(1)(b)) and possessing heroin without reasonable excuse (s.233B(1)(c)).
The trial judge directed the jury that the prosecution did not need to prove any state of mind (intention, knowledge, or motive), only that He Kaw Teh had them.
He was convicted and sentenced to long prison terms (for 20 years).
Key Legal Issue
Does the law require the prosecution to prove guilty knowledge (mens rea) — that the accused knew he was importing/possessing narcotics?
Or is it a case of strict liability (guilty just because the drugs were found, regardless of knowledge)?
High Court Decision in He Kaw Teh v The Queen
The High Court overturned earlier Victorian rulings and clarified that the prosecution must prove the accused knew he was importing narcotics (s.233B(1)(b)). A person cannot be guilty if drugs were planted in their luggage without their knowledge.
Regarding liability under s.233B(1)(c), the word “possession” itself implies knowledge—one cannot possess something without knowing it exists. Therefore, the prosecution must prove the accused was aware of having narcotics in his custody.
At common law, there is a presumption that a guilty mind is required unless the statute clearly excludes it. Serious crimes (like importing heroin) are unlikely to be intended as absolute liability offences.
Thus, the Court stressed that because of the seriousness of drug offences (life imprisonment possible), Parliament likely intended knowledge to be essential. And the burden of proof stays on the prosecution (The Crown).
The case was sent back for reconsideration.
To conclude, the High Court ruled that to convict someone of importing or possessing narcotics, the prosecution must prove the person knew about the drugs. Mere physical presence of drugs in luggage isn’t enough.
Significance
This case is a leading authority in Australia on mens rea in drug offences.
It established that knowledge (or at least wilful blindness i.e., deliberately ignoring suspicious circumstances) is required for serious crimes like drug importation and possession. It rejects the idea of punishing someone who was truly unaware of carrying drugs.
References:
- https://www.austlii.edu.au/cgi-bin/viewdoc/au/cases/cth/HCA/1985/43.html
- https://www.austlii.edu.au/au/journals/NSWBarAssocNews/1985/30.pdf
- https://s3.studentvip.com.au/notes/50349-sample.pdf
- https://s3.studentvip.com.au/notes/453-sample.pdf
YOU MIGHT ALSO LIKE:
MORE FROM CRIMINAL LAW:
- Fagan v Commissioner of Police of the Metropolis: Actus Reus
- Hardman v Chief Constable of Avon and Somerset Constabulary [1986]
- Roper v Knott [1898]: A Quick Case Summary
Ruchi is a legal research writer with an academic background in CA, MBA (Finance), and M.Com. She specializes in digesting and summarizing complex judicial decisions into clear and structured case notes for students and legal professionals.