Sylvester, they have a different system here which works quite well. Cats have the same rules as dogs. Neither is allowed to poke their heads over, under or through a property fence. This means that kids walking to school can complain to the council if they are walking past an aggressive dog every day that is doing one of those things. Cats are supposed to be kept in enclosures if they go outside (you get cat runs that attach to windows) and are not allowed off your property. The council supplies cat traps at a small cost although you have to return the cat to the council in the condition in which you trapped it. Cats and dogs have to be registered & there is an annual fee, which is reduced if they are desexed. The council also has rules for how many and what type of animal you are allowed on your property size. You can put your address in and it will list the maximum animals you are allowed going by your property size. If you want a huge dog or horses or even long lived parrots, you can enter various sizes until you find the property size you need to purchase to be allowed to have these animals.
All pet enclosures have to be 1.5m from your property boundary fence and water run off has to be dealt with.
It sounds really restrictive but in reality you can have whatever you like as long as you manage them well and no one complains. This gives anyone recourse to assistance if their neighbours animals are being a nuisance. Attacks are taken seriously, even if it is your pet being attacked. I called up to order a cat trap, explained why I needed it (my cat was being beaten up every single day & eventually so badly she had to go to the vet - the day I called) and the next thing I knew council officers were coming over to investigate. I never even imagined you could complain about your cat being beaten up by another cat. I was shocked at how seriously it was taken, especially after living in the UK where I reported being attacked by a dog while the owner laughed, to the police and it was like being in an episode of The Office and nothing was done, apart from the officer most likely destroying the paperwork after I left because he likes dogs.