Tuesday, November 15, 2011

Types of Fingerprints





When fingerprints are collected for a crime scene, they are not always easily accessible and visible. There are three basic types of fingerprints, categorized by the way they are left on the scene and the way they are collected.



Visible/Patent Prints: a physical print on a surface in a substance such as blood that allows the fingerprints to be easily visible to the naked eye.




Latent Prints: not visible to the naked eye; formed from sweat; must be developed before they can be viewed or photographed. They can be made visible by dusting, fuming, or chemical reagents.





Impressed/Plastic Prints: indentations left in soft pliable surfaces, such as clay, wax, paint or another surface that will take the impression. They can be viewed or photographed with the naked eye


3 comments:

  1. Might i suggest some examples of these fingerprints as to be able to illustrate their appearences

    ReplyDelete
  2. Alex you need to more reflective about the particular types of prints. What do you think of them personally?

    ReplyDelete
  3. Perfectly decent post. No problems here.
    No further input.

    ReplyDelete