I have a Kukri, from Nepal and its f***ing razor sharp - There is of course the minimum force edict.......balls to that.
Even picking that up would be a really *really* bad idea, and nothing to do with the legalities of the situation.
<48 hours after we had our doors replaced, 0300 Sunday morning, our alarm goes bats with 'Front Door Open', then the 5 second countdown before it all kicks off.
Mrs C kicks me out of bed (don't believe the movies) and I head downstairs: 6'4", 13.5 stone and naked..... This is not an encouraging site for anyone (Mrs C excepted) and then I see the front door *is* open.
I have a pair of Butterfly Swords. They aren't sharp, but it doesn't really matter because firstly you really don't want to get hit by a several kilo piece of steel, and secondly, I *do* know how to use them. They were in the living room, but I did *not* try and get them because the sight of me carrying a couple of 13" long swords would be (probably) scary.
Scaring someone that is in your house is not a great idea, unless you are very sure you that they are not armed and you're not between them and their exit.
YMMV but happy to demonstrate why this is bad to anyone that feels the need.
C