Mr. Stern. Again, at the time of Dallas, how many individuals would have been listed in the trip-index file which you have described?
Mr. Bouck. About a hundred.
Mr. Stern. One hundred in the Nation?
Mr. Bouck. Yes.
Mr. Stern. What are the criteria for putting someone's name in the trip-index file?
Mr. Bouck. The belief on the part of the local field office, with confirmation from the Protective Research Section that this individual would indeed constitute a risk to the President's safety, if he went to that area.
Mr. Stern. This is done, this is organized, on a geographic basis?
Mr. Bouck. Yes.
Mr. Stern. By Secret Service field offices?
Mr. Bouck. Yes.