The scope and detail of the investigative effort by the Federal and State agencies are suggested in part by statistics from the Federal Bureau of Investigation and the Secret Service. Immediately after the assassination more than 80 additional FBI personnel were transferred to the Dallas office on a temporary basis to assist in the investigation. Beginning November 22, 1963, the Federal Bureau of Investigation conducted approximately 25,000 interviews and reinterviews of persons having information of possible relevance to the investigation and by September 11, 1964, submitted over 2,300 reports totaling approximately 25,400 pages to the Commission. During the same period the Secret Service conducted approximately 1,550 interviews and submitted 800 reports totaling some 4,600 pages.

Because of the diligence, cooperation, and facilities of Federal investigative agencies, it was unnecessary for the Commission to employ investigators other than the members of the Commission’s legal staff. The Commission recognized, however, that special measures were required whenever the facts or rumors called for an appraisal of the acts of the agencies themselves. The staff reviewed in detail the actions of several Federal agencies, particularly the Federal Bureau of Investigation, the Secret Service, the Central Intelligence Agency, and the Department of State. Initially the Commission requested the agencies to furnish all their reports relating to the assassination and their relationships with Oswald or Ruby. On the basis of these reports, the Commission submitted specific questions to the agency involved. Members of the staff followed up the answers by reviewing the relevant files of each agency for additional information. In some instances, members of the Commission also reviewed the files in person. Finally, the responsible officials of these agencies were called to testify under oath. Dean Rusk, Secretary of State; C. Douglas Dillon, Secretary of the Treasury; John A. McCone, Director of the Central Intelligence Agency; J. Edgar Hoover, Director of the Federal Bureau of Investigation; and James J. Rowley, Chief of the Secret Service, appeared as witnesses and testified fully regarding their agencies’ participation in the matters under scrutiny by the Commission.

COMMISSION HEARINGS

In addition to the information resulting from these investigations, the Commission has relied primarily on the facts disclosed by the sworn testimony of the principal witnesses to the assassination and related events. Beginning on February 3, 1964, the Commission and its staff has taken the testimony of 552 witnesses. Of this number, 94 appeared before members of the Commission; 395 were questioned by members of the Commission’s legal staff; 61 supplied sworn affidavits; and 2 gave statements.[F-4] Under Commission procedures, all witnesses were advised that they had the right to the presence and the advice of their lawyer during the interrogation, with the corollary rights to raise objections to any questions asked, to make any clarifying statement on the record after the interrogation, and to purchase a copy of their testimony.[F-5]

Commission hearings were closed to the public unless the witness appearing before the Commission requested an open hearing. Under these procedures, testimony of one witness was taken in a public hearing on two occasions. No other witness requested a public hearing. The Commission concluded that the premature publication by it of testimony regarding the assassination or the subsequent killing of Oswald might interfere with Ruby’s rights to a fair and impartial trial on the charges filed against him by the State of Texas. The Commission also recognized that testimony would be presented before it which would be inadmissible in judicial proceedings and might prejudice innocent parties if made public out of context. In addition to the witnesses who appeared before the Commission, numerous others provided sworn depositions, affidavits, and statements upon which the Commission has relied. Since this testimony, as well as that taken before the Commission, could not always be taken in logical sequence, the Commission concluded that partial publication of testimony as the investigation progressed was impractical and could be misleading.

THE COMMISSION’S FUNCTION

The Commission’s most difficult assignments have been to uncover all the facts concerning the assassination of President Kennedy and to determine if it was in any way directed or encouraged by unknown persons at home or abroad. In this process, its objective has been to identify the person or persons responsible for both the assassination of President Kennedy and the killing of Oswald through an examination of the evidence. The task has demanded unceasing appraisal of the evidence by the individual members of the Commission in their effort to discover the whole truth.

The procedures followed by the Commission in developing and assessing evidence necessarily differed from those of a court conducting a criminal trial of a defendant present before it, since under our system there is no provision for a posthumous trial. If Oswald had lived he could have had a trial by American standards of justice where he would have been able to exercise his full rights under the law. A judge and jury would have presumed him innocent until proven guilty beyond a reasonable doubt. He might have furnished information which could have affected the course of his trial. He could have participated in and guided his defense. There could have been an examination to determine whether he was sane under prevailing legal standards. All witnesses, including possibly the defendant, could have been subjected to searching examination under the adversary system of American trials.

The Commission has functioned neither as a court presiding over an adversary proceeding nor as a prosecutor determined to prove a case, but as a factfinding agency committed to the ascertainment of the truth. In the course of the investigation of the facts and rumors surrounding these matters, it was necessary to explore hearsay and other sources of information not admissible in a court proceeding obtained from persons who saw or heard and others in a position to observe what occurred. In fairness to the alleged assassin and his family, the Commission on February 25, 1964, requested Walter E. Craig, president of the American Bar Association, to participate in the investigation and to advise the Commission whether in his opinion the proceedings conformed to the basic principles of American justice. Mr. Craig accepted this assignment and participated fully and without limitation. He attended Commission hearings in person or through his appointed assistants. All working papers, reports, and other data in Commission files were made available, and Mr. Craig and his associates were given the opportunity to cross-examine witnesses, to recall any witness heard prior to his appointment, and to suggest witnesses whose testimony they would like to have the Commission hear. This procedure was agreeable to counsel for Oswald’s widow.

THE COMMISSION’S REPORT