Automated Fingerprint Identification Systems (AFIS)

The Automated Fingerprint Identification System (AFIS) is a computerized database that stores fingerprint information and enables agencies to search for matches. Law enforcement agencies use it to identify individuals who have been arrested or who are under investigation. The system includes a fingerprint scanner that captures an image of the individual's fingerprints and then compares it to the prints in the database. If a match is found, the individual's identity is confirmed. An automated fingerprint identification system must include both fingerprint matching and classification. To evaluate whether a reasonable match exists, the investigator matches the characteristics from the input search point to all pertinent entries in the database (Moses et al., 2011). AFIS is a valuable tool for law enforcement and other agencies. It is accurate and efficient, and can be used to identify people who might otherwise be difficult to identify. Technology development serves as an advantage to the system as smartphones and teller machines are adopting the system. However, AFIS is also expensive to maintain, and it requires trained personnel to operate. Cyber-insecurity also threatens AFIS since data could be manipulated or lost.

When the epidermis is gone or has been entirely damaged after being submerged in a liquid for a long period, osmotic rehydration, often known as the boiling procedure, can be extremely successful. This technique works best on hands and feet that are smooth and supple, lack an epidermis, and appear to have no dermal ridges. The ridges are more apparent since the hot water massages the skin. To maintain a steady flow of water, a saucepan is brought to a temperature just below boiling (about 200°F) and then maintained at that setting (Cutro, 2011). Hot water is added for 10 seconds while the friction ridge skin is attended to. A shorter period is indicated for children's parts with delicate ridge detail or those that swiftly break apart. The examiner has the option to grant a 30-second extension (Cutro, 2011). If necessary, the raised friction ridge can be cleaned by gently brushing black fingerprint powder along the ridge with a soft-bristled toothbrush and water in the direction that the ridge flows. After that, a white, adhesive lifting substance is used to keep the friction ridge in place.