What Is A Major Potential Problem With Dna Evidence

How long Does A DNA Test Takes To Get Result

Some people who have to use DNA to prove something or handle a case are having a problem with DNA evidence. Actually, what is a major potential problem with dna evidence? Let’s discuss it here to know the answer. This information is very important, especially for those who want to deal with certain cases in which you need to show your DNA profile.  

DNA Evidence in the Legal System

Let’s talk about the role of DNA evidence in the legal system before answering the question about what is a major potential problem with dna evidence. The legal institution or system needs to have a trusted DNA profile to match several samples. The sample is used to differentiate from one source to another. Commonly, the source is used in the court to prove something related to a specific case. This is the reason why in some cases, the lawyer needs to bring the result of the DNA test in the court. At the same time, the result of the DNA test should come from a legal and qualified institution. Qualified means that the institution has to be knowledgeable, skillful, experienced, trained, and educated well. Later, the court asks the experts to check the validity of the result to help to solve the case.

Traditional DNA Profiling Method

There are two traditional DNA profiling methods commonly used to get a trusted and qualified result. The first method is known as VNTR Profiling method. This method is done by a molecular biology. You will have more than one similar result. This is also the reason why no one of the state or federal courts used this method. It is a little bit hard to conclude the best result due to the similarities in the DNA profile. The second method to know the DNA profile is a PCR-based testing method. The problem is that this method produces a wider result than the VNTR method.  

The Way You Get DNA Profile

When there is a case related to DNA, the DNA sent to the lab for further treatment. For example, the Police Department Crime Laboratory has handled around 500 cases per year from a variety of cases. The lab accepts a lot of DNA profiles from those cases. Then, the lab will send the DNA profiles to the independent experts for further analysis. What people don’t know is that there are a lot of misinterpreting. If it is happening all the time, the result of the lab will be incompetence and it is very dangerous.

The Dangerous of Wrong DNA Profile

After learning a little bit about what is a major potential problem with dna evidence, you have to learn the dangers of this problem. Let’s learn it in an example to make it easy to understand. Let say, you are involved in a criminal case. You are suspected to be the person who did the case. In fact, you don’t know anything about the case. The police want to make it sure and they decide to take your blood as a sample. Your blood sent and analyzed by the crime lab. The report will be sent to the police and if the DNA matches even if you are not the suspect, you will be jailed. If it is happening, it might be a misinterpretation of the DNA analysis. Now, you get the point of how dangerous the impact of the DNA evidence problem, right?

The Process of Achieving DNA Profile

The DNA evidence involves a long process. Your blood will be taken by the legal institution. Then, the blood will be sent to the forensic laboratory and analyzed by the expert. Your DNA will be extracted and amplified to get the specific genetic marker. The result is presented on a test strip in the form of blue dots. Your result will be compared with the DNA of the victim. In the criminal case, if the dot pattern is matched with the dot patterns of the victim, you are detected as the suspect. Just imagine if there is an error during the process. Indeed, it becomes a serious problem of the DNA evidence.

There are also several errors made by the analysists while finishing the process. The common error is on the extracted the blood sample. For instance, the analysists take three separate samples and because of some human errors, the analysists make the wrong interpretation. Even a technology used to do this process tends to give an error result.     

The Major Problem with DNA Evidence

From the explanation above, it can be said that what is a major potential problem with dna evidence is on the laboratory error. The case above is the fact that a laboratory error might happen. This error triggers a serious problem, especially if it is related to the criminal cases. The key is treating the sample-handling and laboratory procedures slowly and correctly. The participant can also take a second test in two different independent laboratories to make sure that they get an accurate DNA profile. It might be not the best solution because we are dealing with complex human structures but at least the solutions above help to reduce the error level. The participant will get higher DNA profile value for their own benefits. There is also an important role of the convenience samples. Most courts accept the convenience samples. The reason is that the courts made a calculation based on the convenience samples. As the result, they will get an accurate genetic marker. Those convenience samples are including blood groups, HLA types, serum proteins, and enzymes.

One of the alternative solutions is a ceiling method. The process which is in the form of computation result will be scientifically valid. This method is also a good solution for producing larger VNTR profile. Due to its beneficial effects, some courts have used the ceiling method. The rest of the courts are still used traditional method with accepted by the legal system standard.

The point is that now you know what is a major potential problem with dna evidence. Moreover, you know the role of DNA evidence as well as some solutions as the alternative to get the most accurate DNA profile to finish your court case in the best way. By learning what is a major potential problem with dna evidence, you know what to do if you have a case which forces you to use a DNA profile, especially on how to avoid the problem during the process.