Downloading for personal use in Hong Kong is NOT a criminal offence - the legislation is pretty black and white on that. The copyright holder does, of course, have the right to take legal action in a civil court ie sue for damages.
Distribution (uploading) in Hong Kong IS a criminal offence. It is not clear in HK whether that would include the normal uploading the average BT client does. As far as I am aware there has never been a successful prosecution on those grounds - whereas Chan Nai-Ming was prosecuted for creating the torrent tracker file.