If any person shall be found committing an offence under section 1 of this Act on any land, it shall be lawful for the owner or occupier of the land, or any servant of the owner or occupier, or any constable, to require that person forthwith to quit such land and also to give his name and address; and if that person on being so required wilfully remains upon the land or refuses to give his full name or address, he shall be guilty of an offence.