DNA Services of America provides accurate, confidential, chain-of-custody DNA paternity testing accepted by California Superior Courts, including the family courts of Los Angeles, Orange, Riverside, and San Bernardino counties.
John Taddie, Ph.D. is Director of our Los Angeles and Orange
County DNA testing center. Dr. Taddie has over 13 years of experience in
DNA testing for paternity, family relationships, and human
identification. He has supervised over 150,000 DNA paternity and
family relationship tests, has reviewed over 45,000 individual DNA test cases,
and has testified as a DNA expert in over 50 California civil and criminal
court trials involving cases of child support, custody, probate, welfare fraud,
immigration, sexual assault, incest, and homicide.
Dr. Taddie is a current member of AABB and a former appointed member of the
AABB Relationship Testing Standards Program Unit, the team of experts that
establishes AABB’s internationally accepted Standards for Relationship Testing
Laboratories. In this capacity, he was a contributing writer to the 6th
and 7th Editions of the AABB's Standards for Relationship Testing
Laboratories. Dr. Taddie received his B.S. in Microbiology from Penn
State University in 1986, obtained his Ph.D. in Molecular Biology from Cornell
University in 1992, and completed a postdoctoral research fellowship at the
Salk Institute in 1995.
Dr. Taddie presents frequent lectures on DNA testing to legal groups, medical
associations, and government agencies throughout Southern
California. He has been a guest lecturer for USC School of
Medicine, UC Irvine Medical Center, California State University, the American
Red Cross, the Orange County Clinical Laboratory Management Association, and
the California Welfare Fraud Investigators Association. Dr. Taddie has
also been an invited speaker and educator for the Department of Child Support
Services in over 40 California Counties, including Los Angeles, Orange,
Riverside, San Bernardino, San Diego, and Imperial counties, and he has
provided MCLE (Minimum Continuing Legal Education) on DNA testing to numerous
local legal organizations, including the Beverly Hills Bar Association, the
South Bay Bar Association, the West Orange County Bar Association, the Orange
County Paralegal Association, and Legal Secretaries Incorporated.
Since 1997, Dr. Taddie has been helping clients resolve diverse, unique, and
complex family relationship questions through DNA testing. He understands
and appreciates that every situation is very personal, and very private.
Please feel free to call and ask to speak to Dr. Taddie directly for a free
confidential consultation.
