Dna Evidence And Its Effects Essay
Everyone has his or her own unique DNA and no two sets are alike. With modern advances small samples many years old can now be identified breathing new life in cold cases and in some cases set innocent men and women free by clearing their name (Dempsey & Forst, 2011). This has created a backlog of cases both old and new. With a limited number of qualified labs it has led to mix up between cases. DNA has been a determining factor for many, if not most, cases since its discovery (Dempsey & Forst, 2011). Some of the problems with the use of DNA is the possibilities of contamination by the mishandling of the sample, mixing up samples in the lab, this was created due to the backlog, and getting samples from a suspect who is not in any of the databases without violating his or her constitutional rights under the Fourth, Fifth, or Fourteenth
Amendment (Dempsey & Forst, 2011).One of the biggest challenges in using DNA evidence is defending it in court against expert witnesses. The prosecutor has to be able to prove why their
DNA was found where it was, how it was discovered, when it was left, who found it, and how it was handled (Dempsey & Forst, 2011).
The use of DNA evidence requires the assistance of highly educated and trained experts. It would be impossible for an officer or another person, by way of training or experience only, to give an opinion with respect to such evidence. Consequently,…