We examine ammunition of various types to identify it as to its caliber, its specific designation, and the type or types of weapons in which it can be fired, and we make comparisons of bullets to determine whether or not they were fired from a particular weapon and make comparisons of cartridge cases for the purpose of determining whether or not they were fired in a particular weapon, or for determining whether or not they had been loaded into or extracted from a particular weapon.
That training course lasted for approximately 1 year. However, of course, the experience in firearms is actually part of the training and continues for the entire time in which you are engaged in examining firearms.
Briefly, that is the summary of the firearms training I have had.
Mr. Eisenberg. Could you estimate the number of examinations you have made of firearms to identify the firearms?
Mr. Frazier. Thousands, I would say—firearms comparisons—I have made in the neighborhood of 50,000 to 60,000.
Mr. McCloy. Have you written any articles on this subject?
Mr. Frazier. Yes. I have prepared an article for the "FBI Law Enforcement Bulletin" on firearms identification, which is published as a reprint and provided to any organization or person interested in the general field of firearms identification.
Mr. McCloy. Have you read most of the literature on the subject?
Mr. Frazier. Yes, I have.
Mr. McCloy. Is there any classical book on this subject?