Amstaff isnt listed, but it says:
2. Banned dogs
In the UK, itís against the law to own certain types of dog. These are the:
Pit Bull Terrier
Itís also against the law to:
a banned dog.
Whether your dog is a banned type depends on what it looks like, rather than its breed or name.
Example If your dog matches many of the characteristics of a Pit Bull Terrier, it may be a banned type.
So if your dog, "looks" like a pit bull. Its banned. Wow. How crazy is that?