Recently moved into a new estate which is lovely and quiet and very safe for my two cats.
At least it was until someone who moved into the street acquired a Bengal. This cat is STUNNING however it is the most horrible cat I’ve ever encountered (I’ve had cats 20+ years)
It started with the Bengal preying on my little tabby and a couple of viscous attacks which ended with my cat having to get a wound stapled. Now, I don’t allow my cats out unless I’m at home so that I can intervene if there’s a fight.
At least that was the plan until I tried to chase the Bengal away one day (not mid fight but in preying mode) and it attacked ME instead!
We approached the owner but and the owner admitted she didn’t know what to do about the cat and it’s behaviour and offered no solution 
This has went on for a while now but the Bengal is clearly looking for a fight to the point that it climbed into an open window the other night and attacked one of my cats.
We approached the owner (again) and she was pretty disinterested. We did say that if it came in again then we would take the matter into our own hands (God knows what we would do though)
Do any of you lovely people have any advice?
I know if it was a dog, particularity if it attacked a person) then it would probably be a police matter but is there anything that can be done with a cat?
We’re now restricting when our cats go out and keeping all windows and doors closed but it’s not ideal.
I’m also concerned that if it can attack an adult, it won’t think twice about attacking my 4YO.