Unfortunately the vast majority of politician's in the UK are all the same when it comes to disarming the popultation, the parties vie with each other to see who can be the most anti gun or anti knife so it does not really leave anyone to vote for purely on these issues.
I carry a sub 3" locking knife every day of the week and will argue it out in the courts if hauled up by the law.
I was in a police station a few weeks ago on a unrelated matter and saw a home office poster saying it is an offence to carry a knife in a public place without good reason eg job related but allowing the carry of
"a small folding pocket knife with a cutting edge of less that 76mm"
I save my bigger knives for carrying when in the uniform of HM's armed forces as I think that i sa good enougth reason to have a bigger knife.
As to Donl's point as to an offensive or defensive weapon, you are not allowed to carry anything in this country to defend yourself with (if that is the sole purpose of the item eg a club or something) but I allways carry a 4 or 5 D cell Maglite in my car to use as such if necessary.
Although the normal bobby on the beat is not armed with anything except a baton (most of them now carry ASP batons or various side handled models) all forces have armed responce vehicles on the roads that contain weapons upto H&K MP5's in the boot.
We obvioulsly have a much lower armed crime rate that the States but I belive it is growing in many areas mostley due to drugs and the rate has not dropped because of the prohibition of all centre fire handguns (what a suprise)
Sorry about this rant but it hacks me off when people slag us off without good reason.
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Harvey Wareham
Live Long & Prosper, so you can buy more knives