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?
Mr. Cadigan. I have a Master of Science degree from Boston College in Newton, Mass. Upon being appointed in the FBI, I was given on-the-job training, which consisted of working with various examiners, conducting experiments, reading books, attending lectures, and so forth.
Mr. Eisenberg. Mr. Cadigan, how long have you been in the questioned document field?
Mr. Cadigan. Twenty-three and a half years.
Mr. Eisenberg. And during that time have you examined papers to determine their possible origin?
Mr. Cadigan. Yes.
Mr. Eisenberg. Can you estimate the number of such examinations you have conducted?
Mr. Cadigan. No; not with any degree of accuracy, except many, many specimens, many, many comparisons.