Patent ID: 7050906

Claim:
A system, comprising: a monitored unit attached to an object, wherein said monitored unit comprises: a memory unit operable for storing a computer program operable for determining if said monitored unit has been tampered with; a processor coupled to said memory unit; an emitter coupled to said processor, wherein said emitter is configured to emit infrared signals to a skin of an individual; and a detector coupled to said processor, wherein said detector is configured to receive reflections of said emitted infrared signals from said skin; wherein said processor, responsive to said computer program, comprises: circuitry operable for determining if an intensity of said reflections of said emitted infrared signals is less than a threshold; and circuitry operable for transmitting an indication that said monitored unit has been tampered with if said intensity of said reflections of said emitted infrared signals is less than said threshold.