“Defense counsel made numerous objections throughout both direct and re-direct examination. On cross-examination, defense counsel actively challenged Leary’s qualifications and pointed out deficiencies in Leary’s report. Defense counsel was able to elicit admissions from Leary that he had no independent recollection of the testing, he was not a member of the only national professional organization for firearms examiners, and that the lab was unaccredited. Leary also admitted that his report did not include any description of markings on the bullets, shell casings, or the test fire bullet, and that he did not test any of the bullets recovered from the autopsy.”
NOTE: It seems like the defense was able to uncover a lot of problematic testimony from the expert but that the expert’s testimony was still admitted. I can’t find the trial court opinion, however.