no point ringing the cops there useless deffo put the secruity light on the back of ya yard and get a cameras put up aswell there only about £80 a piece for the cameras and lights are about a tenner and if ya gonna go tackle them make sure you got a bat remember if its a smack head possible could be carrying a needle as ive heard of this happening before dont mean to worry you more mate but the last thing ya want is to get pricked with 1 of them but deffo get the lights and cameras up