Costco has an entire surveillance system for around $1100. Several motion activated cameras and CC feed to a monitor in the house.
Kooki - Wow. I’ve been following this thread, thinking how lucky I am that my one set of neighbors are just total morons, and not actually belligerent, drunk or dangerous. I agree with the others who said that the drunk mom and/or hateful spawn may well be ready and more than willing to escalate this situation. I think you would be wise to carry a tape recorder or video camera with you at all times. Is there some way you can get a message to PC Owen? I would hate to bother him while he’s recuperating, but if his cohort won’t take you seriously…better you inconvenience him to make a phone call to his coworker than you find your property vandalized or yourself injured in a confrontation.
I hate to ask this since a few folks got upset about this line of thought earlier, and I apologize if this has already been answered, but what are the gun laws like in the UK? Can you carry? I ask for the unlikely but totally possible scenario of the mother accosting you. Even if you only use it to bonk her over the head. Carry nasty stinging pepper spray. Have large and imposing friends spend the weekend.