Richard Williams
Characteristics of Physical Evidence Types
Introduction to Forensics

In these next few paragraphs I will list and explain the three fingerprint ridge patterns and what are the three types of fingerprints investigators may find at crime scenes. And I will also describe I.A.F.I.S. include Live scan technology and the procedure Live scan has replaced. Hopefully after reading you will have a better understanding of the topics.
Fingerprints are supposed to be the most important proof against any crime as they are unique to each person and cannot be matched with other people. The Crime Information Bureau is an agency of the Division of Law Enforcement Services falling within the jurisdiction of Wisconsin Department of Justice. This department is given the responsibility of up keeping complete and precise identification information about the criminals. The major evidences which are considered important under law are fingerprints, descriptions, photographs and also other personal information which identify the person. When seen under magnifying glass our finger tips reveal ridges and circular patterns on the skin. These patterns or prints are marked before you take birth and are with you for the rest of your life. One of the most important characteristics of these fingerprints is that no two people can have identical fingerprints and hence they are used for identifying a person as evidence.
Although the finger prints of every individual are different, they follow certain patterns. These fingerprint patterns are of three main types: Arches, loops, whorls. Around 5% of fingerprint patterns found are Arches. In this type the ridges are seen running from one end to other with no backward turn. Usually in an Arch pattern, delta is not found. But if a delta is present, the re-curving ridge is never seen interfering between the delta and the core