BACKGROUND AND QUALIFICATIONS
WILLIAM L. BOWMAN
QUESTIONED DOCUMENT EXAMINER
14412 San Jose Street
Mission Hills, California 91345
(213) 897 – 1116
He and his family live in Mission Hills, California, in the San Fernando Valley.
From December 1954 to July 1957, he served as a patrolman on the Beverly Hills Police Department.
In July 1957, he became a member of the Los Angeles County Sheriff’s Department. In 1962, he was promoted to the rank of Sergeant.
He received an Associate Arts Degree in Police Science from Valley Junior College, Van Nuys, California, in 1959.
He was selected to be trained as a Questioned Document Examiner in December 1959. This full time study and work was supervised by Mr. John L. Harris, who has been a Questioned Document Examiner for more than 30 years.
He has read and studied the major books on questioned documents, e.g., ” Questioned Documents” by Albert Osborn, “Problems of Proof” by Albert Osborn, “Suspect Documents” by Wilson Harrison, “Scientific Examination of Documents” by Ordway Hilton, “Evidential Documents” by James Conway, and other books, articles and papers from professional sources.
As a part of his continuing training, he has discussed questioned document problems with other examiners, both in law enforcement and civil practice. He is a member of the California Check Investigators Association.
He trained Sgt. Herbert L. Campbell, of the Los Angeles County Sheriff’s Department, to be a Questioned Document Examiner.
He has examined documents not only for the Sheriff’s Department, but also for 58 police departments and sheriff’s offices, 21 state agencies, 15 federal agencies (including the Attorney General, Internal Revenue Service, U.S. Army and the Federal Bureau of Investigation), and many other agencies. In addition, numerous federal, superior and municipal court judges have called upon him to be the court’s witness.
In March 1961, he began to testify as a Questioned Document Examiner. Since then he has testified on over 500 occassions in California and several other states. These courts include Federal, Superior, Municipal, Juvenile Court, Grand Jury and some State Boards.
In January 1968, he resigned his position as Senior Questioned Document Examiner for the Sheriff’s Department, to enter private practice as a Questioned Document Examiner. He now examines documents and testifies in both criminal and civil cases. Banks, airlines, oil companies, retail store chains, savings and loan associations, private investigation firms, public defenders offices and many attorneys now use his services.
Exhibit to Affidavit