Found this in this thread on BBfrom British Blades
Hi Simon,
Thank you for your inquiry.
There is no law disallowing the use or making of broadheads in the UK other than those laws which deal with any object used in such a manner as to be judged to be an offensive weapon.
We have chosen not to sell into the UK as we dont want to encourage people to misuse bows for hunting.
Hope this is the information you need...
Regards
Tom Bishop
Quicks Archery
http://www.britishblades.com/forums/showthread.php?t=811&page=3&pp=15
Its been gone over loads of times here - all hunting with bows or crossbows in the UK is illegal - doesn't matter what point or if it's a blunt or a broadhead or whatever.
Point as I see it is that we are all law abiding folk (I'm sure all of us here on BCUK anyway) trying to go about our hobbies, pastimes, whatever in a peacable law abiding fashion. We act responsibly and follow whatever codes of practise appropriate. Then along comes some daft so and so who gets the press all heated up because they bought some crossbow with broadheads off an internet auction site and then shoots someone. Press start baying for blood, public outcry, politicians jump on the bandwagon and suddenly my collection of arrows from all over the world is illegal.
Hasn't happened yet but easily could - so well done Rob for getting e-bay to listen.
George