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The concept of human-to-human recognition is also seen in behavioral-predominant biometrics such as speaker and gait recognition.

This system, called the Henry System, and variations on it are still in use for classifying fingerprints.

True biometric systems began to emerge in the latter half of the twentieth century, coinciding with the emergence of computer systems.

These measurements were written on cards that could be sorted by height, arm length or any other parameter. The other approach was the formal use of fingerprints by police departments.

This process emerged in South America, Asia, and Europe.

Influenced by the writings of Jeremy Betham and other Utilitarian thinkers, the courts of this period began to codify concepts of justice that endure with us to this day.

Most notably, justice systems sought to treat first time offenders more leniently and repeat offenders more harshly.

Chinese parents also used fingerprints and footprints to differentiate children from one another.

• In early Egyptian history, traders were identified by their physical descriptors to differentiate between trusted traders of known reputation and previous successful transactions, and those new to the market.

Repeat criminal offenders often provided different aliases when arrested.

Bertillon noted that although they could change their names, they could not change certain elements of their bodies.

Many of these new automated techniques, however, are based on ideas that were originally conceived hundreds, even thousands of years ago.