A man who engaged in sexual acts with his younger sister when he was just a teenager knew his behaviour was “seriously wrong”, prosecutors have told Hong Kong’s High Court.
Senior Public Prosecutor Karen Ng Ka-yuet said on Thursday that the older sibling, believed to have been aged between 11 and 14 at the time of the alleged offences, was fully aware that the acts involving his sister, who is three years younger, were inappropriate.
The five alleged incidents took place on unspecified dates only weeks apart, sometime between 2013 and 2016, at the family’s home in Sha Tau Kok. The sister, now 20, filed a police report in 2021.
The defendant, now 24, has denied four counts of incest and three counts of indecent conduct towards a child under the age of 16.
Ng said the indecent acts were charged separately from the incest counts because they concerned different sexual conduct.
The prosecution’s evidence draws on statements from the defendant, in which he admitted to these acts. The sister is not set to testify in court.

By South China Morning Post | Created at 2026-09-03 13:23:38 | Updated at 2026-09-03 14:00:50
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