![]() ![]() LATENT PRINTS - are fingerprint impressions secreted in a surface or an object and are usually invisible to the naked eye. These prints require no enhancement in order to be viewed, because they are impressed onto an object and are easily observable. Some surfaces that may contain this type of fingerprint are those that are freshly painted or coated, or those that contain wax, gum, blood or any other substance that will soften when hand held and then retain the finger ridge impressions. PLASTIC PRINTS - are visible, impressed prints that occur when a finger touches a soft, malleable surface resulting in an indentation. These foreign substances contain dust particles which adhere to the ridges of the fingers and are easily identifiable when left on an object. The tried and true "blood on his hands" evidence is an example of patent prints recovered from a crime scene or scene of interest to investigators. These prints leave a distinct ridge impression that is visible with the naked eye without technological enhancement of any kind. PATENT PRINTS - are visible prints that occur when a foreign substance on the skin of a finger comes in contact with the smooth surface of another object. There are three distinct types of fingerprint impressions that can be recovered from a crime scene or a scene of interest for investigators looking for some clues as to a missing person, or for other identification purposes. Since no two individuals have the same fingerprint pattern and these remain unaltered during the course of a person's lifetime, the main type of physical evidence that can be extracted from a crime scene are fingerprints. One of the main tasks of the crime scene investigator is to recover fingerprint impressions in order that a positive identification can be ascertained. America has always had a fascination with the solving of crimes, and fingerprints are one of the most common types of evidence that investigators search for at crime scenes. Today's programs, such as the most popular TV program over the last five years, C.S.I., bring a level of sophistication to the viewing audience that producers of the early crime shows, such as "Peter Gunn" and "Seventy-Seven Sunset Strip," never dreamed was possible. Crime shows, detective stories and police tales have historically been a staple of the country's television viewing habit, and the country has always had a fascination with these kinds of shows. The programs are an indication of the norms, values and interests that society holds dear at any given time. Over the past sixty years, television has always been a reflection of our society.
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