Miscellaneous
In Japan, if someone is photographed or filmed while handcuffed, their hands have to be pixelated if it is used on TV or in the newspapers. This is because Kazuyoshi Miura who had been arrested brought a successful case to court arguing that being pictured in handcuffs implied guilt, and had prejudiced the trial. Similarly, in Hong Kong, people being arrested and led away in handcuffs are usually given the chance by the policemen to have their heads covered by a black cloth bag.
Police handcuffs are sometimes used in sexual bondage and BDSM activities. This is potentially unsafe, because they were not designed for this purpose, and their use can result in nerve injury (Handcuff Neuropathy) or other tissue damage. Bondage cuffs were designed specifically for this application. They were designed using the same model of soft restraints used on psychiatric patients because they can be worn for long periods of time. Many such models can be fastened shut with padlocks.
Read more about this topic: Hinged Handcuffs