"The Science of Firearm/Toolmark Identification continues to be challenged by critics within the legal community and the media. The National Academy of Sciences has issued reports critical of the scientific foundations of the discipline. 2,3 Other critics in the legal and academic fields have identified mistakes made by crime laboratories which have resulted in massive overhauls of the identified systems and evaluations of previous casework of the affected -13 These critics have argued that there is a lack of empirical research and that the validity of the science has yet to be established. 9-13 They also claim that the methods which examiners employ during the examination and evaluation of firearm and toolmark evidence have yet to be standardized. 9-12 "