The effectiveness of DNA evidence in court depends on the ability of the witness to explain the probability that no other person, except an identical twin has the same DNA type as that discovered at the crime scene. the quality of the evidence analysis that was performed in the crime lab. the qualifications of the crime lab and the crime lab personnel. the jurisdiction, the lab technician, and the quality of the equipment used in the analysis.

the ability of the witness to explain the probability that no other person, except an identical twin has the same DNA type as that discovered at the crime scene.

Explanation:

DNA (deoxyribonucleic acid) can be obtained from blood, hair, and many biological materials.

DNA evidence is one of the most secure methods applied to criminal cases, even for offenses from before the advancements in DNA-testing technology.

However, identical twins share the same DNA, so their DNA is not useful as evidence of a crime, nor a paternity test.

The ability of a witness to explain the probability that no other person, except an identical twin, has the same DNA type.

Explanation:

In a criminal investigation, DNA analysis often termed as DNA profiling is used in comparing various criminal suspects' DNA profiles to that of the DNA profile gotten from the crime scene in order to determine the possiblity of their involvement in the crime committed .

While, the effectiveness of DNA depends on the ability of a witness to explain the probability that no other person, except an identical twin, has the same DNA type.

It is very crucial in criminal investigation due to the fact that, its result shows a unique code for every person (except twins) and it allows to place a suspect at the crime scene

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