How Reliable is DNA Testing in Forensic
Forensic investigators rely to a larger extent on the DNA information collected from a crime scene to enhance their investigations or provide concrete evidence that will close their case, however, the use of DNA information as evidence is marred with series of issues that question the reliability of the process of collecting the highly susceptible DNA where a slight mistake can lead to a wrong prosecution, therefore, admissibility of DNA results as evidence of a crime in a court of law is seriously considered to ensure all procedures were followed correctly and DNA tests were conducted by a reliable DNA test lab. Therefore, if ever accused of a crime where DNA test is being used as evidence consider hiring a reliable and experienced criminal defense attorney who can assist you in challenging the DNA tests, the attorney, however, must be familiar with DNA cases, collecting and testing procedure to successfully exploit possible loopholes that questions the reliability of DNA testimony in a court of law. Although the use of DNA tests as evidence continues to become popular because of its matched ability to identify criminals, DNA cases are highly susceptible to errors, this article has outlined some common sources of these errors so keep reading this article.
The reliability of DNA cases is dependent among other things the reliability of DNA collection procedure, however, it can be difficult to ensure the highly sensitive molecular evidence was not compromised, destroyed, or contaminated when having a couple of people at the crime scene, when searching for DNA information at a crime scene investigators involve forensic team, witnesses, police, and forensic support staff, with all these individuals around it, is uncertain to know they are careful to avoid damaging, contaminating or compromising the DNA.
DNA from a crime scene is mainly collected from bloodstains, dead skin, hair, etc but proofing that you collected enough to provide reliable DNA evidence in the courtroom is always a subject of discussion, furthermore, you need to proof and convince the jury and judge that the DNA was not comprised by exposure to cold or hot weather during collection and transportation to the lab for further analysis, police also need to assure the court that DNA collected came from a guilty person because an innocent bystander may be at the wrong place at the wrong time, all these possibilities make DNA cases complex as even when investigators are objective and thorough with their work such occurrences can exist which can send an innocent person to jail.
Human beings have over 99.9 percent DNA similarity with 0.1 percent being distinct to a specific individual, this makes it challenging for the forensic team to use DNA collected from a small sample in a crime scene which may be compromised or damaged as evidence, however, with modern technology reliability of finding the distinct 0.1 percent DNA from a small sample has seen DNA evidence becoming more and more admissible in courtroom. Those are some reasons why forensic investigators find it complex to use DNA as evidence in criminal cases.