Liability of landowners for unlawful assemblies requires prompt notice and use of lawful means to prevent or disperse gatherings. Liability attaches to owners, occupiers, or persons claiming interest in land where an unlawful assembly or riot occurs if they or their agent or manager, knowing of the offence or having reason to believe it likely, fail to give earliest notice to the officer in charge at the nearest police station, fail to use all lawful means to prevent an imminent offence, or fail to use all lawful means to disperse or suppress a riot or unlawful assembly; heightened liability applies where the riot benefits or is connected to the person or their dispute.