They may be employed by police or other authorities to identify individuals who wish to conceal their identity, or to identify people who are incapacitated or deceased and thus unable to identify themselves, as in the aftermath of a natural disaster.
Other common fingerprint patterns include the tented arch, the plain arch, and the central pocket loop.
Latent prints are often fragmentary and require the use of chemical methods, powder, or alternative light sources in order to be made clear.
Sometimes an ordinary bright flashlight will make a latent print visible.
For example, the above set of prints would only need to be compared to other sets of fingerprints with a value of 3.
or hand print identification, is the process of comparing two instances of friction ridge skin impressions (see Minutiae), from human fingers or toes, or even the palm of the hand or sole of the foot, to determine whether these impressions could have come from the same individual.
These epidermal ridges serve to amplify vibrations triggered, for example, when fingertips brush across an uneven surface, better transmitting the signals to sensory nerves involved in fine texture perception.