1. Prohibition of offensive weapons at public meetings and processions (S.33 Public Order Ordinance)
Anyone who has with him any offensive weapon during any public meeting or public procession without lawful authority or reasonable excuse shall be guilty of possession of offence weapon in public place. A person convicted with possession of offence weapon in public place is liable to imprisonment of 3 years.
Offensive weapon means any article made, or adapted for use, or intended for causing injury to the person. Apart from traditional weapons such as knives, other items such as extendable batons and petrol bombs can also be caught by this offence.
Even where an item is not an offensive weapon by itself, it can become an offensive weapon by reason of the intention of the possessor to use it as an offensive weapon.