Support BladeForums! Paid memberships don't see ads! This thread was started at an American member's wish. UK knives, that are non locking folders which are 3 inches or under require no reason to carry. Locking, fixed blades, axes, machetes etc... fall into the bladed article law. A bushcrafter with a parang, traveling on public transport is legally allowed to do so because they have reasonable excuse. A sea fisherman with a 7inch fillet knife on a pier also has a legal reason. Your behaviour and actions are taken into account. Some knives are classed as offensive weapons and are not allowed to be carried regardless of reason. No article is to be carried for the purpose of self defense in the UK. Americans have difficulty computing this law. Anything that is used to threaten or attack someone becomes an offensive weapon, this could be a cricket bat. This also causes some confusion for some Americans. If you are interested in Tony Martin, you must know he had his gun licenses revoked for shooting out his sister's window, the shotgun he used was unlicensed and it was a pump action with more shots than is UK legal. He shot/killed a youth in the back and seriously injured a man, and then Mr Martin fled the scene. Tony Martin only did a few years in prison for this. If you have any questions ask away.