Printed from: https://conservationhandbooks.com/fencing/fences-and-the-law/protecting-against-trespass/
On a fence or wall adjacent to a public highway or right of way, any deterrents to trespass, such as barbed wire or spikes on walls should not be a danger to highway users. The owner of the fence or wall can be sued if a passer-by is injured by a deterrent which is considered...