A biometric characteristic is a measurable physiological or behavioral trait of a living person, especially one that can be used to determine or verify the identity of a person in access control or criminal forensics. Most real adoption of biometric technologies during the next five years will come from government applications (for example, immigration, social security and surveillance), although corporate adoption will continue to grow slowly until biometric readers are routinely embedded in hardware, such as notebooks. Typical biometric measures include fingerprints, retinal recognition, facial thermograms and voice recognition.