Wheneverany unlawful assembly or riot takes place, the owner or occupier of the landupon which such unlawful assembly is held, or such riot is committed, and anyperson having or claiming an interest in such land, shall be punishable withfine not exceeding one thousand rupees, if he or his agent or manager, knowingthat such offence is being or has been committed, or having reason to believeit is likely to be committed, do not give the earliest notice thereof in his ortheir power to the principal officer at the nearest police-station, and do not,in the case of his or their having reason to believe that it was about to be committed,use all lawful means in his or their power in prevent it, and, in the event ofits taking place, do not use all lawful means in his or their power to disperseor suppress the riot or unlawful assembly.