How Forensic DNA Testing Can Help Uncover the Truth in Legal Cases
Forensic DNA testing is the scientific way of analyzing the DNA samples collected from the crime scenes that support the legal arguments.

DNA testing services are not just limited to determining paternity or confirming the infidelity. However, they have had a huge impact on the justice system as well. The advancement in technology has played a huge role not only in the resolution of new cases but in the review of old cases as well. In that regard, forensic DNA testing has become an essential tool in uncovering the truth in legal cases. But how does it actually work? In this post, we will be looking at the process of forensic testing and its role in legal cases.
What is Forensic DNA Testing?
Forensic DNA testing is the scientific way of analyzing the DNA samples collected from the crime scenes that support the legal arguments. It is the process of analyzing and interpreting the genetic material that helps in the criminal investigation and identification of the predator or the victim. This DNA analysis involves the use of scientific techniques for the extraction, purification, and analysis of biological samples. The study of the sample is not only of one form but rather DNA sequencing, polymerase chain reaction, and short tandem repeat analysis. The advanced techniques and technologies aid in uncovering the truth.
What are the Applications of Forensic DNA Testing in Legal Cases?
As stated, DNA testing services are not about establishing paternity, but they help in the resolution of legal cases in different ways.
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Genetic analysis helps identify suspects and criminals. The identification of DNA samples helps connect different criminals and find the link between the two cases if they are related.
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Cold cases that often get closed due to lack of evidence are now being resolved due to advances in DNA technology. For example, the conviction of the Golden State killer from 1974 to 1986 was solved through DNA evidence.
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It also helps find the remains of a dead person, thus allowing the identification of a missing person in a case.
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In cases like child custody cases, inheritance cases, or divorce cases, DNA evidence acts as a strong tool for arguments.
According to sources, Alec Jeffreys and the Pitchfork murder case was the origin of DNA profiling in criminal investigations. This highlights the importance and impact of DNA testing.
How does Forensic DNA Testing Work?
This process starts with the collection of biological samples.
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The investigators carefully collect the biological samples, including hair, saliva, fingerprints, blood, or any other body fluids. They carefully handle the sample so as not to contaminate it. The mord good the quality of the sample, the more good the result will come.
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The sample goes to the lab, where they extract the DNA from the sample for the creation of a DNA profile.
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Then they compare the profile with the existing data of criminals to find any record of the criminal.
In this way, forensic DNA testing helps find the culprit.
What are the Benefits of Forensic DNA Testing?
The benefits of the testing include the following:
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It helps determine if the suspect was present at the crime scene or not.
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DNA profiling gives the most accurate and authentic information about the suspects.
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DNA testing offers scientific evidence, which is considered one of the most reliable sources of evidence.
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It not only identifies the suspect but also verifies the timeline and circumstances of the crime.
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Above all, two people do not have the same DNA except identical twins. So, it helps find the culprit with great accuracy.
What are the Challenges and Limitations of Forensic Testing?
Some of the challenges and limitations include the following:
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One of the most challenging issues is the potential for human error in the analysis and interpretation of results.
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Humans do not have the ability to interpret all kinds of data. Sometimes, there is also the involvement of subjectivity within interpretation.
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The size and quality of the sample also have a direct impact on the analysis of the biological material.
How to Find a Reliable Lab for DNA Testing Services?
For any kind of DNA testing or forensic testing, the DNA testing center plays an integral role in guaranteeing the accuracy of analysis. You may look for the local options by searching for DNA testing near me. This will help you find some local options. However, you must look for lab accreditation or certifications. Further, it is good to look for the reviews before selecting the lab.
Conclusion
Forensic DNA testing has become an integral part of the legal and justice system. It holds importance due to its strong scientific evidence and the accuracy of the data. Concerning the accuracy of data, the authenticity of the lab also plays a dynamic role. Choice DNA testing lab is a good choice for DNA testing as it meets the standard criteria of a reliable lab.
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