When a Police user applies cuffs to someone who is aggressively resisting, if the double lock is not engaged the cuffs can ratchet tighter and tighter throughout the struggle. Studies have shown that this scenario can create potential damage to the radial nerve, resulting in an injury called Handcuff Neuropathy. ‘Neuropathy’ is damage or dysfunction to one or more nerves that typically results in numbness, tingling, muscle weakness and pain in the affected area (1). ‘Handcuff’ Neuropathy is a compressive neuropathy caused by the tight application of handcuffs, wherein the superficial radial nerve and in some cases the median nerve can suffer long term damage due to overtightening after handcuff application (2). This neuropathy has been documented by many medical journals and there have been several successful lawsuits against United States police departments from subjects who suffered nerve damage while in handcuffs (3). Because the application of cuffing and applying the double lock can be done more efficiently with a push-button system, the Police user is in a better position to secure the double lock quickly, and not have to prolong the engagement while trying to fit the key into the cuff.