Mr. Ball. The deposition taken in the course of an investigation by the Commission to investigate the facts concerning the circumstances surrounding the assassination of President Kennedy, and I am a staff officer. My name is Joseph A. Ball. I am authorized to administer the oath to you and to ask you certain questions concerning some matters which you do have knowledge of.

Mr. Pinkston. Yes, sir.

Mr. Ball. You are willing to testify, are you not?

Mr. Pinkston. Yes, sir.

Mr. Ball. In the course of your investigation, were you called to the Texas School Book Depository sometimes around the 2d of December 1963?

Mr. Pinkston. Yes, sir.

Mr. Ball. And who asked you to come down there?

Mr. Pinkston. I was instructed by one of my supervisors to conduct an investigation there on that date.

Mr. Ball. On that date?

Mr. Pinkston. Yes, sir.