A mounting strap assembly of a tracking device includes a primary mounting strap and one more secondary reinforcing support straps. Continuity sensing elements and other tamper detection means detect any attempt to cut through the mounting strap assembly during an attempted removal of the tracking device from an offender or other mounted location. The reinforcing support straps keep the mounting strap assembly from being completely severed while providing authorities time to be summoned to the location where the tracking device is located and prior to the tracking device being completely removed.