Abstract: A restraining device, and method thereof, for shackling first and second wrists of an individual with lockable first and second cuffs extending from opposite ends of a link that electrically isolates the first and second cuffs, where the restraining device includes an electrocardiogram (EKG) sensor having a first input electrically coupled to an electrically conductive portion of the first cuff, such as a first double strand adapted to contact the first wrist, and a second input electrically coupled to an electrically conductive portion of the second cuff, such as a second double strand adapted to contact the second wrist. The restraining device further includes a wireless communications module configured to send EKG data and/or alert messages to an electronic device.

Abstract: A sensor-enabled tamper-resistant body-worn monitoring cuff that includes a magnet and a magnetic sensor that are adjacent to each other when the cuff is worn by an individual and are separated when the cuff is removed. The magnetic sensor detects a magnetic field of the magnet and causes an alert message to be wirelessly transmitted when the magnetic field drops below a predetermined threshold. The cuff further includes a physiological sensor, such as a heartrate sensor, and an inertial sensor, such as an accelerometer, which detect signals that are analyzed to determine whether the individual's physiological parameters have deviated from normal or expected values and which may cause an alert message to be wirelessly transmitted.