Patent ID: 7042357

Claim:
An identification device comprising: a band; a non-reusable tamper-resistant fastening arranged to join opposite end regions of said band to fasten it around a body part of a user; a transponder circuit attached to said band, the transponder circuit being responsive to a received wireless signal, and in response to said received wireless signal, emitting a wireless signal representative of information pre-stored in the transponder; an electrically conductive continuous loop on said band extending from said transponder and forming an electrically continuous path along substantially the entire length of said band, said loop being frangible and easily broken in response to an attempt to remove the band from the wearer's body part; circuitry in said transponder electrically connected to said loop and arranged to become inoperative and disable said transponder if said loop is broken; and wherein said non-reusable tamper-resistant fastening comprises a hole in one end of said band and a barbed peg on the other end of said band, the barbed peg arranged to pass through said hole and lock into a mating hole shaped to resist removal from said hole, and wherein said frangible loop closely encircles said hole.