Over 100,000 lethal weapons have been recycled and instead of posing a danger to the public, they are now part of the reinforcement rods for new buildings.
The huge arsenal that included cut-throat razors, samurai swords, meat cleavers, machetes and even a bayonet dated back to 1880 were handed in to police during a five-week national knife amnesty.
But instead of creating great disposal problems, the knives were destroyed beyond recognition in minutes courtesy of H Williams and Sons’ Hertfordshire metal recycling plant.
After the pulverised particles of steel were sorted to remove all non-metal material such as crushed plastic handles, they were sent on a train to Cardiff.
In no time at all, traces of the materials previous life were undetectable, as it was being used to reinforce concrete blocks in a new building development.
This secure process is used by a number of companies, Government departments and police to ensure that highly-secret prototype designs are not copied and potentially useful parts do not get into the commercial market.