I want to go camping in the UK. A Swiss army knife, or any pocket knife, is standard equipment to go camping. Now I'm wondering if border control will allow me to go through, with a knife in my backpack. I have no idea on how thorough the scanning of my backpack is, or how strict the border control is in such cases.
I'm taking the Eurostar to go to the UK, but I think this question may hold for any border control.