It seems that currently, HMRC are allegedly confiscating certain knives that can open in a certain manner from individual purchasers, but not from companies i.e. Hennies.
The future is indeed uncertain as can be seen here
http://www.britishblades.com/forums/showthread.php?t=70460
and it would be a shame if we end up with more restrictions applied when the knife crime is predominantly committed with normal kitchen utensils, work tools and a host of other pointy objects. Objects used tend to be low value items that the perpetrator dont really want to keep, whereas this situation tends to affect mid to high value items that would tend to be kept in drawers, used in the woods for feathersticks, skinning, whittling (insert many other skilled knifey/sharpey skills here) or used some other manner that would not entail plunging it into someone else at dark o clock for spilling pint/ dissin' mi/ lookin at mi funny/ insert other half as5ed reason here.
Its sad really that a sensible law was interpreted in a way not intended and a precedent was set, but whats worse is that laws already passed are not enforced when a knife crime/ injury/ murder is committed. Stab someone and you should get the 5 years.
It would stop, overnight probably.