Our UK laws are DELIBERATELY ambiguous and unclear this allows the control freaks police and authorities the flexabilty to decide if something innocuous today can be classed as an illegal weapon tomorrow. EG no one would object to you using a fixed blade panga / machete/ fixed blade / hatchet / hawk in a wild camp site in a remote rural area, but they MAY arrest you if you travel on a bus or train to that remote location. A couple of years a go a carpenter on a job decided he fancied a pie and a pint for lich, so he popped into a pub still with his tool belt around his waist ( stops em getting stolen) a cop spotted him going into the pub and arrested him for possessing dealy weapons in a public place. ( charges got dropped later but its shows the almost Marxist logic of todays British police). Recently our " bobbies" tazered an elderly disabled BLIND gent in Derby for the crime of carrying what they thought was a Samurai sword in public, it was a white blind persons cane.
Having a fixed blade for a specific job is legal like a camp site, but venture into the village or hop a bus with it and even if its secure in the bottom of your rucksack if a cop stops and searches you and finds it , theres a 50 /50 chance you will be arrested.
The trouble is since guns were banned in the UK making us so much safer ( gun crime rose by 50% in the following 5 years) many city gangs ( sadly mainly ethnic gangs) have taken to roaming London, Birminfham, Leicster, etc with huge great knives and swords, I believe over 250 young ethnics have been stabbed in London last year, so of course the left wing media starts screaming about banning knives, swords, axes etc but they forget to say "" IN URBAN AREAS""