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	Privacy Law and Policy Reporter

Table B: Biometric techniques

• Appearance (supported by still images)
• Passport descriptions such as: height, weight, colour of skin, hair and eyes; visible physical markings, gender, race
• Facial hair, wearing of glasses
• Social behaviour (supported by video-film)
• Habituated body-signals
• General voice characteristics
• Style of speech
• Visible handicaps
• Bio-dynamics
• The manner in which one's signature is written
• Statistically-analysed voice characteristics
• Keystroke dynamics, particularly log-in-ID and password
• Natural physiography
• Skull measurements; teeth and skeletal injuries
• Thumbprint, fingerprint sets and handprints
• Retinal scans, earlobe capillary patterns; hand geometry
• DNA-patterns
• Imposed physical characteristics
• Dog-tags, collars, bracelets and anklets
• Brands and bar-codes
• Embedded micro-chips and transponders

Clarke R A 'Human Identification in Information Systems: Management Challenges and Public Policy Issues' Information Technology & People 7, 4 (December 1994)