Would you describe the various sources you rely upon?
Mr. Bouck. Yes. If I might refer to this exhibit that is 760 which would be page 4 of that, the second memorandum. I believe the front of that lists the sources. No. 1 is mail, packages, telephone calls, received at the White House, the President's home, on trips, and so forth, these are screened, and so forth, in PRS and evaluated and if they meet certain prescribed criteria they are retained by PRS and become a source of information.
Unwelcome visitors to the White House or anywhere else the President may be is another source. Information received——
Mr. Dulles. What page are you on?
Mr. Bouck. That is the page.
Mr. Dulles. The first page?
Mr. Bouck. Yes, I am reading from the second paragraph or rather the tabulation.
Mr. Dulles. Yes, I find it.
Mr. Bouck. Certain information comes directly to us or is developed by us, item 3. Item 4, reports from other Government agencies, and officials. Item 5, reports from police departments, State and local sources, and then we get a certain amount of phone calls, letters and information that come directly to us from the public.
Mr. Stern. We may get some notion of the volume of the information you receive from this document, which is entitled "Protective Research Cases, November 1961 through November 1963," which would be Exhibit 762. Do you recognize that, Mr. Bouck?