How Reliable is DNA Testing in Forensic
Court accepts DNA tests results as evidence in the prosecution of crime and legal litigation, although courts insist on the accuracy of DNA testing sometimes it can be difficult to tell if the whole process right from collecting DNA from the crime scene was appropriate, given series of people involved along the way, for these reasons questions, have been raised on the reliability of DNA test results as evidence of a crime, this result to many people hiring an attorney to challenge the admissibility of DNA results as evidence in criminal cases. It is therefore important to find a criminal defense attorney to defend you in case you ever find yourself accused of a crime where DNA is among the evidence being used to pin you to the crime, the attorney you choose, however, need to be experienced defense attorney who is versed in DNA cases, DNA collection and testing procedure so that can question the reliability of the process to raise the reliability of the DNA evidence in the case. So the question is, what makes DNA cases so complicated, to answer this question, this article has detailed some reasons DNA cases to be complex so continue reading.
One of the reasons why DNA evidence is complex to pursue in a court of law is because of the sensitive DNA collection procedure which involves a good number of people such as police, forensic team, witness, and forensic support staff, with such a team it is almost impossible to prove that the DNA was not damaged, contaminated or destroyed during its collection given that it is a highly delicate molecule.
In most cases DNA in a crime scene is collected from semen, blood stains, dead skin, hair among other things, the question arises whether the collected DNA information was enough to provide reliable evidence that can be used in a court of law, there is also the question whether the DNA evidence has been destroyed by exposure to heat or cold and how can police be certain is from the guilty individual, this is because there is a possibility of the DNA coming from an innocent person at the crime scene unknowingly, all these questions highlight chances for DNA to be compromised or mischaracterized even when the forensic investigators and the whole team is careful with DNA collection at the crime scene.
The other reason why DNA cases are sensitive is that people share up to 99.9 percent DNA leaving 0.1 percent as the only way the forensic team can identify the criminal, therefore, DNA collected from a small sample is highly doubted in the courtroom unless you prove the reliability of lab analysis technique in the courtroom. Those are some reasons why forensic investigators find it complex to use DNA as evidence in criminal cases.