All case-winning legal
arguments have one thing in common: they are transparent and informed
presentations of facts that best explain the circumstances of the
crime or civil issue brought before the court. However, on occasion,
it may be difficult for laypersons to decipher the meaning and
significance of each piece of evidence presented before a judge. In
such cases, the skills of an
expert witness
might be necessary.
In cases where the effect
of a certain chemical or substance is put to question, an experienced
toxicologist might be called up. The toxicologist can then provide
his opinion—as drawn from his years of experience in the field—on
the way these chemicals act and react, as well as how these affect a
given living organism.
Example of the use of
toxicologists as expert witnesses include criminal cases where a
person has been drugged or poisoned and the substance involved in the
incident needs to be identified. In such a case, the expert witness
may conduct an independent analysis of tissue collected from the
victim or a sample of the chemical to identify its nature, its
reaction, and its effects. These are then compared with any items
collected at the scene of the crime and brought before the court in
an expert testimony.
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