Mr. Frazier. Yes; I am a special agent of the Federal Bureau of Investigation assigned to the FBI Laboratory, Washington, D.C.
I work in the firearms identification unit in the laboratory, making examinations of firearms, bullets, the effects of bullets, trajectories, firing tests, powder pattern tests, and various other types of examinations.
(At this point Senator Cooper left the hearing room.)
Mr. Specter. Have you appeared heretofore before the Commission to testify about examinations which you have conducted of the clothing worn by President Kennedy, the clothing worn by Governor Connally, the examination of the Presidential limousine and certain ballistics information?
Mr. Frazier. Yes; I have.
Mr. Specter. Did you participate in the onsite tests at Dallas on May 24, 1964?
Mr. Frazier. Yes.
Mr. Specter. What was your position during most of the time of those onsite tests?
Mr. Frazier. I was stationed at the window on the sixth floor of the Texas School Book Depository Building at the southeast corner of the building.
Mr. Specter. How far was that window open at the time the tests were being conducted?