An optical anti-tamper system including a light emitting layer located within a chassis, a light detecting layer located within the chassis and one or more detectors optically coupled to the light detecting layer. At least one bead population exhibits a pre-designed sustained release profile. And a communication terminal comprises: a first communication unit for communicating with a cellular network, a processing unit, and a first inputoutput unit, and further comprising: a second communication unit, for transmitting voice and data information between the processing unit and the first inputoutput unit by way of short distance wireless communication.