Criminal responsibility of juveniles

Criminal responsibility of juveniles 

The statutory minimum age and irrebuttable presumption 

The minimum age of criminal responsibility is 10 years. There is an irrebuttable presumption that no child under the age of 10 can be guilty of any offence. 

While such children are not punishable by any criminal process, they may still be subject to care and protection proceedings under the Protection of Children and Juveniles Ordinance (Cap. 213) if their welfare is at risk. 

The rebuttable presumption of doli incapax (ages 10 or above but under 14) 

For children aged 10 or above but under 14, a rebuttable presumption of doli incapax exists. In these cases, the prosecution bears the burden of proving two distinct elements beyond a reasonable doubt: 

1. That the child committed the specific act or omission charged. 
2. That at the time of the offence, the child possessed the “guilty knowledge” to understand that their conduct was seriously wrong as opposed to being “mere naughtiness” or “childish mischief”. 

Evidential requirements and restrictions for rebuttal 

The prosecution must provide clear and positive evidence to successfully rebut the presumption of doli incapax. Evidence of guilty knowledge must not consist solely of the proof of the act itself. No matter how horrifying or obviously wrong the act may appear to an adult, the prosecution cannot rely on the gravity of the crime alone to prove that the child understood its serious wrongfulness. 

The prosecution bears the burden of proving the child's knowledge of wrongfulness to the criminal standard (beyond reasonable doubt). 

Judicial factors in proving guilty knowledge 

In determining whether a child offender was aware that his conduct was seriously wrong, the court considers various factors, including: 

• The child’s conduct before and after the commission of the offence. 
• Evidence that the child took the victim to a remote place where intervention was unlikely, used violence that caused obvious distress, or made threats after the act specifically to prevent disclosure. 
• The repetition of the same or similar offences, which may indicate a settled understanding of the act’s wrongfulness. 
• In cases involving sexual offences, evidence of the child’s sexual sophistication or the specific sex education he had received prior to the offence. 

Conclusive presumption of sexual incapacity 

Beyond general criminal responsibility, Hong Kong retains a common law presumption regarding sexual capacity. A boy under the age of 14 is conclusively presumed to be incapable of sexual intercourse.  

No evidence may be called to rebut this presumption for the purpose of a principal charge. This effectively bars the prosecution from charging a boy under 14 as the principal offender in crimes where sexual intercourse is a constituent element, such as rape. 

However, the presumption is strictly limited to the boy’s capacity to be the “principal” (the one performing the act). This does not prevent a boy under 14 from being held liable for rape if he is implicated as an accomplice (a person aiding or abetting) rather than the principal offender.