There is a world in which every crime is solved in 60 minutes, DNA matches are made “While U Wait,” and staff work on only one case at a time. But it is a fantasy land, an imaginary land; it is not the real world. This book is about the real world of biometric identification technology. It is a fascinating topic. This technology can confirm the identity of an individual in a split second; it can also reach back in time to place a suspect at the scene of a crime that occurred years ago.
With no more information than a picture or a fingerprint, it is possible to match a subject in question with a known individual. With or without the subject’s cooperation, his or her DNA, fingerprint, portrait, or some other physical characteristic can be matched to a known person.
An identification can lead to a record, a description of a person’s past. If the person has been previously arrested, the arrest information can be retrieved. If the person has previously applied for a job that required a fingerprint check, that information can be requested. Biometric identification does not need to rely on spoken information from the subject in question; even amnesia victims and the dead can be identified. Once the necessary information has been entered into a biometric database, future inquiries require only the successful comparison and matching of the biometric for confirmation of identity.