Abstract: A restraining device for use in a vehicle to prevent the movement of a subject's arms, when wearing hand and arm restraints such as handcuffs, and the subject's legs. The device includes "T" shaped members of flexible material having one or more crossbar portions and a stem portion. A handcuff or double action safety hook or hook-and-loop fasteners are used for attachment to the subject's hand and arm restraints, thus securing the subject's arms either behind or in front of him. A D-ring and hook-and-loop fasteners or a spring loaded buckle may be used for securing the crossbar member around the subject's legs. In one embodiment, the restraining device is attached to the vehicle by a metal bracket attached to the vehicle floor in front of or behind the seat. The restraining device may be either permanently or detachably attached to the metal bracket in a permanent or a detachable mode, such as a hook affixed to the restraining device.