levers and application of force are not obvious to the majoirty of the population.
I did a consultancy job for a court case for a police force that was sueing a stiff cuff manufacture for supply faulty goos which wern't fit for purpose.
BAsically they were bending and failing while making an arrest.
So we did material tests on them which proved that the metal that they were made out of was over spec'd for the contact.
We put them in a the testile puller under various conditions using scafolding poles as the levers. Again passed with flying colours compared to the spec and contract agreement.
Put them in the hands of one Her Majestys finest drug enforcment officers who has years of practise subjecting people to the maximum legal amount of force as required tackling a druggie who is out of there tits they bent like a twix in the tropics.
With the forces involved we couldn't understand how the person being arrested arm was still on afterwards never mind not broken.
We got asked to foxtrot oscar and they lost the case 9 months later. If they had asked us we could have told them that there specs were wrong and that all they needed to do to the current ones was super glue a metal spacer to torsionally stiffen the cuffs and you could have rolled a car over using its towbar hook using one of them.
Its all in the application of force not the amount or how strong the thing looks that your apply it to. If its not been designed to take a load in a particular way you can break it.
Last edited by mad_jock; 26th June 2012 at 13:08.