What Are the Different Methods of Fingerprint Detection?

Fingerprint, because of its invariance, uniqueness and convenience for life, has almost become synonymous with biometric identification. Fingerprint refers to the lines produced by the unevenness on the front skin of the end of a human finger. The lines are regularly arranged to form different patterns. The starting point, ending point, joining point, and bifurcation point of the lines are called minutiae.

In 1684, British plant morphologist Grew published the first study

The main advantages of fingerprint detection technology are:

1,

A typical fingerprint recognition system works as follows.

Fingerprint recognition process

On April 22, 2014, some researchers believed that there was a certain loophole in the method of identifying suspects with fingerprints in criminal investigation and identification.

According to Mike Silverman, a forensic expert from the UK s Home Office, fingerprint evidence is not as reliable as people have always thought, and the hypothesis that everyone s fingerprints are unique. To verify. Fingerprints are very similar in a family, and the shape of the fingerprint is not static. As people age, skin conditions change, which will also affect the shape of the fingerprint.

In addition, there are many external factors that affect people's judgment. Because fingerprints found by police at the crime scene are often soiled or incomplete, people will inevitably make mistakes when identifying fingerprints. Therefore, there are flaws in using fingerprints to identify criminals, which can easily lead to injustices.

As early as 2004, the United States FBI fingerprint expert misjudged a fingerprint and believed that a man was related to the Madrid bombing. In 2007, a woman in Scotland was also suspected of being involved in a homicide and was wrongly charged.