How to Present DNA Evidence in Court

With the vast amount of law dramas that are all over television, the preponderance of DNA usage in proving or dis-proving guilt, paternity and presence at a crime scene is almost a must-have in every one of those dramas episode. As any good barroom lawyer knows, its all about the presentation that makes the case.

Instructions

1. Acquire the DNA. Most crime scene investigators and crime labs will do this, as a crime scene is not open to the public. Have any samples tested for the DNA makeup and pattern. Typically, 2 or more samples will be needed for contrast and comparison. For example, 2 differing sets of DNA will prove that 2 persons were at that scene. In paternity cases, a sample from the baby and the potential father is needed. These are typically done with cheek swabs.

2. Introduce the DNA evidence to the jury. A side by side comparison that explicitly shows the differing DNA patterns is an excellent way to draw a jury to a conclusion that there were 2 or more parties to a crime scene. By using pictures on an easel, you can pinpoint the differences and visually capture the jury's attention. With two explicitly different samples presented side by side to a jury it is a tough sell to contradict the evidence.

3. Have a certified DNA expert on the stand to explain the differences in the DNA patterns. They will be able to explain the samples in depth and explain the differences of all samples taken at a scene. They also add credibility to your case. These experts can be found in a listing of professional witnesses.

Tips & Warnings

• To paraphrase a great quote, "Only a fool represents himself in court." While you may feel like you can be your own lawyer, it is highly suggested that you leave your television law skills at the bar or home and hire a real lawyer if you ever find yourself in a position that requires one.