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The chief end of fingerprinting is to detect criminals who try their best to escape the long arm of law after committing crimes. Fingerprinting servers as a noose for the police and crime department to trap the offenders easily. Digital fingerprinting has made it much easier for the investigation department. In the present era of digital devices, fingerprinting is done with enhanced mechanism. The digital process of fingerprinting plays the instrumental to serve as a great help in criminal detection.

Most of the activities that the police and the investigation officers pursue to identify a criminal and put him behind the bars have undergone several transformations through technological modernization in the 21st century. Digital fingerprinting is one of the transformations. In the days before digital technology emerged, ink pads were used to take fingerprints. The advancement of digital technology is manifested in the replacement of ink pads with digital devices. Digital technology has contributed to the detection of criminals to a great extent. Unlimited is the implication of digital fingerprinting to prove the association of one or many criminals with a crime. The severity of punishment for the criminals depends on the nature of their crimes.

It is a fidgety job to examine fingerprints. Therefore, the process of digital fingerprinting is delicate and mechanized. The fingerprints of the accused or the suspect are taken using a digital device and then, transmitted to the data bank of a computer for examination. The computer with the data bank should be maintained properly so that it functions infallibly. The success of the process in a number of cases has made digital fingerprinting beyond measure. The use of digital devices in checking fingerprints has been useful also for those who suffer ignominy due to being falsely accused of crimes. It helps get their names out of the list of suspects.

The mechanized process of digital fingerprinting requires the suspect to put his hand on a smaller glass screen and displays the fingerprints on the screen of the computer. The scanning of the prints gives results with accuracy and throws light on the criminal among the suspects. Moreover, evidences related to DNA are checked in the same digital process. Because of digital fingerprinting technology, the identification and dedication of the criminals who put on mask to hide themselves has been as easy as cakewalk.

Usually, not criminals but employees are subjected to hair drug testing. Nowadays, this sort of test is highly popular in the corporate industry. Corporate employers require the job applicants to undergo a hair drug test as part of the recruitment procedure, in order to know if they are addicted to alcohol and any other addictive substance. It is conducted on the existing employees as well to ensure if addiction to addictive substances is the reason for their under performance. The procedure of hair drug testing is simple as well as non-invasive. It yields successful results even it is conducted a few months after one's intake of drug or alcohol. The court accepts hair drug testing results in criminal cases.