A fingerprint is an identification that the friction ridges of your finger leave behind when they come into contact with an object. Fingerprints are essential tools used in forensic science because it can be used to prove that someone was at the scene of a crime. The reason that a fingerprint is such an excellent way to foster a case against someone is that it is deposited easily onto objects and just as easily extracted for professionals to retrieve and use. Your fingerprint is a one-of-a-kind signature that you leave behind when you touch your hands to a suitable surface. Since no two people share the same fingerprint impression, your prints can identify you with ease. The combination of private investigation and fingerprints can be used to identify possible suspects and determine if someone was at the scene in question.
How Are Fingerprints Identified?
Fingerprint identification is also known as dactyloscopy. It is the process of comparing the friction ridges of the finger to match up against a sample. There are times when the same individual’s fingerprint will alter from one print to the next. Only trained experts are capable of determining if two prints belong to the same person. If an expert compares one fingerprint against another and some points are not seen, the fingerprints are not a match. If the points match up exactly, then it is considered a match. Although there is no standard set of points that are required to achieve a match, the more points that are identical; the stronger the strength of the identification is.
How Are Fingerprints Found?
Sometimes fingerprints are not visible to the naked eye. It is possible to find prints by using a special ultraviolet light, but, in most instances, finding them requires only a regular flashlight. Once a fingerprint is noticed, powder and specific chemicals are used to “set” and lift it so it can be analyzed.
How Are Fingerprints Analyzed?
Before there were sophisticated computer programs to compare fingerprints, it took time to analyze a print and find a match. But thanks to the marvels of science and technology, it is possible to achieve results nearly immediately. There are even live scanning devices that are used to identify someone quickly.
Our fingerprints are the key to our identification and used both in law enforcement and private investigation. With the uniqueness of someone’s fingerprint, it is possible to identify one person out of billions around the world. If you are interested in learning more about private investigation and fingerprints, All Private Investigations LLC can help. Our team is made up of former NYPD detectives, who have experience using fingerprints to get to the bottom of cases. Contact us today!