What is an Expert Witness
An expert witness is anyone who, through training, education, skill, or experience, has particular knowledge that the average juror would not possess concerning questions of science, skill, trade, or the like. An expert witness may render an opinion within his area of expertise after the proper qualifications have been proven to the trial court. Thomas v. State, 321 Ga. App. 214, 741 S.E.2d 298 (2013).
In criminal proceedings, the opinions of experts on any question of science, skill, trade, or like questions shall always be admissible; and such opinions may be given on the facts as proved by other witnesses. O.C.G.A. § 24-7-707.