Abstract: A restraint system includes a wrist restraint system and an ankle restraint system that allow the limbs of a detainee to be restrained. The lockable wrist restraint system includes a waist belt and wrist restraints that are rotatably mounted to the waist belt. The wrist restraints can be positioned anywhere around the waist belt. The lockable ankle restraint system includes a strap and two buckles that form the strap into two loops. Each loop is used to restrain a leg of the detainee. A lockable buckle includes a housing that creates a tortuous path that traps a strap to which the buckle is mounted and prevents the strap from being adjusted or removed from the detainee.

Abstract: A double-locking mechanism for handcuffs, which include a pawl-and-ratchet mechanism wherein the ratchet pawl is spring biased to couple with a pivotal ratchet jaw arm within in a shackle casing and a bolt is provided for engaging the pawl to prevent the coupled jaw from pivoting in either direction in order to double lock the mechanism. A pivot slide mechanism is provided whereby either the pawl or the bolt is not only permitted to pivot about an axis within the casing, but is also permitted to have limited displacement in a direction transverse to its pivot axis which thereby causes the pawl to engage a stop within the casing to double lock the pawl from pivoting in either direction and also causes the bolt under bias to displace from a first bolt position to a second bolt position and thereby engage and retain the pawl in the double lock position against the stop in order to ensure that the mechanism will remain double locked until opened with a key.