What is a primary characteristic of waist chains as restraint devices?

A primary characteristic of waist chains as restraint devices is that they are designed to help secure a subject when moving an inmate. Waist chains are used in correctional settings to ensure that individuals being transported are both secure and manageable, reducing the risk of escape or harm to officers and the subject. They provide a means of control, allowing law enforcement or correctional personnel to safely move inmates while limiting their ability to cause disruptions or flee.

In contrast, the use of waist chains indefinitely is impractical and typically goes against protocols that advocate for the least restrictive means of restraint. Complete mobility is not afforded by waist chains, as their purpose is to restrict certain movements for safety reasons. Similarly, waist chains are not limited to emergency situations; they are utilized regularly during transport and other interactions involving inmates to maintain security and order.