State v. Gray

MURPHY, Judge.

In a criminal prosecution for possession of a controlled substance, when an expert in forensic chemistry provides testimony that establishes a proper foundation under Rule 702(a) of the Rules of Evidence, the expert's opinion is otherwise admissible, *738 and any unpreserved assignments of error related to the trial court's "gatekeeping" function is only reviewed for plain error. Furthermore, when plain error is assigned to a trial court's admission of expert testimony on the grounds that the testimony is not "reliable," we do not consider data or theories advanced in a defendant's…