My everyday knife is a Swann-Morton number 4 with number 22 blade. Now is that a fixed blade or not as the blade clips on and off? I also use the Swann-Morton PM knife which has a removable 4 inch scalpel blade which is so sharp it will happily cut through ribs with no effort at all. I always carried an Opinel in my bag in a pouch, but going by the recent overzealousness of The Met, I have left it at home unless going bush. Funny how the locking mechanism is a safety feature, yet seen as a health hazard by the law. So if you cut your fingers off with a non locking folder, could you sue the government for purposely not allowing you to use a safety feature? I doubt it... Strange how when i was a kid in the countryside in the 70's a knife was a tool, and now a s a responsible adult in the City, a knife is considered a weapon. Crims don't obey carry laws anyway, so as usual the innocent normal people pay the price and become criminalised. Oh well.....