Mr. STOMBAUGH. Well, this is difficult because we don't know how many different shirts were made out of this same type of fabric, or for that matter how many identical shirts are in existence. Mr. EISENBERG. Mr. Stombaugh, I gather that, and correct me if I am wrong, that in your area as opposed to the fingerprint area, you prefer to present the facts rather than draw conclusions as to probabilities, is that correct? Mr. STOMBAUGH. That is correct. I have been asked this question many times. There are some experts who will say well, the chances are 1 in 1,000, this, that, and the other, and everyone who had said that and been brought to our attention we have been able to prove them wrong, insofar as application to our fiber problems is concerned. Mr. EISENBERG. You mean prove them wrong in terms of their mathematics? Mr. STOMBAUGH. There is just no way at this time to be able to positively state that a particular small group of fibers came from a particular source, because there just aren't enough microscopic characteristics present in these fibers. We cannot say, "Yes, these fibers came from this shirt to the exclusion of all other shirts." Mr. EISENBERG. We appreciate your conservatism, but the Commission, of course, has to make an estimate, and what I am trying to find out is whether your conservatism, whether your conclusions, reflect the inability to draw mathematical determinations or conclusions, or reflect your own doubts? Mr. STOMBAUGH. No. Mr. EISENBERG. Can you tell us which that is? Mr. STOMBAUGH. There is no doubt in my mind that these fibers could have come from this shirt. There is no way, however, to eliminate the possibility of the fibers having come from another identical shirt. Mr. EISENBERG. Now, in your mind what do you feel about the origin of the fibers you found in the bag? Mr. STOMBAUGH. I didn't find enough fibers in the bag to form an opinion on those. Now if I would have found, say 15 or 20 fibers and all 15 or 20 matched the fibers from the blanket, then I could say, "Yes, I feel that these very easily could have come from the blanket." But I didn't. I only found two of the many types. Mr. EISENBERG. Okay. I have no further questions. Mr. DULLES. Do you have any further questions? Mr. MURRAY. No; I have no further questions. Mr. DULLES. I have no further questions. Thank you, Mr. Stombaugh, we appreciate your coming. TESTIMONY OF JAMES C. CADIGAN Mr. DULLES. Would you mind standing and raising your right hand? Do you swear the testimony you give before the Commission is the truth, the whole truth, and nothing but the truth, so help you God? Mr. CADIGAN. Yes, sir. Mr. DULLES. Thank you. Mr. EISENBERG. Mr. Cadigan, can you state your full name and position? Mr. CADIGAN. James C. Cadigan, special agent of the FBI, assigned as an examiner of questioned documents in the laboratory here in Washington. Mr. EISENBERG. What is your education, Mr. Cadigan?