This research tells that George Barry’ s case was based on the discovery of a tiny speck, only visible under a microscope that connected him to the crime scene. According to the forensic science expert dealing with the case, the firearm discharge residue particle found in George’ s coat was consistent with the one found on Dando’ s head and so that qualified George as one of the potential suspects in the case. This evidence was considered enough by the jury and hence led to the conviction of George. This put the role and use of expert evidence under fire with criticism arising from the reliability of such minute evidence as it was adopted and led to George’ s life imprisonment.
This formed the basis of the appeal against the decision and when the evidence was shelved, George’ s case was dismissed and he was acquitted. Let us look deeply at the admissibility of such evidence in a court of law and whether it should be used in the determination of a given case without the aid of other forms of evidence. Support evidence is always important in such cases.
The magnitude or size of the particle found in such a case also has a significant value in the determination of the case. In the decision made by the judges and in the setting of the new guideline that will be used in a determination of such cases, the judges wanted to understand the nature of firearm discharge residue that was found in George’ s coat. What is the possibility that it could have landed there by mistake? These particles, obviously microscopic, spray out with the firing of the gun as they were found on Dando’ s head after she was shot dead.
Firearm discharge residue is made up of bits of propellant that shots the bullet. It is also composed of particles of the primer. Propellant particles are totally different from the primer in that the primer has some metals in its composition that distinguish it from the propellant. Upon microscopic analyses, the speck found in George’ s coat was found to be a primer residue.
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