Manacles

Manacles are restraints worn on the wrists to restrain a person. They consist of two cuffs connected by a chain or a solid bar and are designed to secure the wearer’s wrists together or to a fixed object. The term is often used to refer to handcuffs, but manacles can describe a range of devices used by law enforcement, prisons, and maritime operations to control movement.

Most modern manacles are made of steel or steel alloys and feature a locking mechanism with a key. Some designs are hinged; others use a chain linking the cuffs. A double-lock feature prevents the cuffs from tightening accidentally and reduces the risk of injury.

History and use: The concept dates to medieval and early modern periods, when metal restraints were used to secure prisoners and crews. In contemporary use, police and security services commonly employ handcuffs for temporary detention, while more restrictive devices such as leg irons or shackles may be used for other situations or transport.

Variants and related devices: Thumb cuffs are smaller restraints used for limiting the movement of the thumbs. Some manacle designs are a single metal band that locks around the wrist, while others combine hinged cuffs with a linked chain. Leg irons and ankle shackles are closely related forms used on legs. Materials may include steel, aluminum alloys; iron was common historically, while modern devices are typically corrosion-resistant stainless steel.

Legal and ethical considerations: The use of manacles is regulated by law. Improper or excessive use can cause injury, and many jurisdictions require training, documentation, and adherence to safety standards. Restraint devices are typically used only for short periods and subject to oversight.