Clinical Forensic Toxicology Expert Witness

Provides Opinion & Testimony In:

Clinical Forensic Toxicology Manager, Pain Management Drugs, Quality Assurance, Atomic Absorption,


– Managed staff of over 31 people.

– Pain Management drugs.

– Full knowledge of Quality Assurance & Control in the field of Toxicology and Chemistry.

– Most of the auto analyzers, EIA, RIA, TLC, HPLC, GC, GC/MS, ICP/MS, LC/MS MS, Radioisotopes,  Fluorometry, Atomic Absorption.

– Over 23 years experience in the Forensic Toxicology and Clinical Chemistry.




California Laboratory Scientist III (CLS III)

Lead Technologist


– Research and development technology on drug abuse by LC/MS MS.

– Lead trainer of Chemistry and Toxicology of technicians and technologists.

– Analysis, extraction, and interpretation of Pain Management drugs by tandem MS MS.

– Responsible for protocol, compliance, and Standard Operating Procedure (SOP).

– Consultation/expert witness in Clinical/Forensic Toxicology, Pharmacokinetics and GC/MS data in over 50 cases in Federal, District and Circuit court in the state of California.



Forensic Toxicology Manager


– Overall understanding of hair analysis for drug abuse.

– Understanding of urine analysis, oral fluid, sweat patch, and specimen matrix.


SPECIALTY LABORATORIES, Valencia, CA (2004-2007)

Toxicology Technical Supervisor


– Research/Development in new testing and method update (ICP/MS).

– Instrument maintenance and repair (ICP/MS).

– Provide in-service training and continuing education to staff.

– Conduct effective and open communication with staff.


QUEST DIAGNOSTICS (Formerly Unilab Corporation), Tarzana, California (1986-2004)

Clinical/Forensic Toxicology Manager (1994-2004)

Forensic Toxicology Supervisor (1986-1994)


Have set and directed SAMSHA/NIDA and Forensic drug testing laboratory. Assumed duty as Chief Forensic and Clinical Toxicologist, with many years of experience in technical management as Laboratory Director.


– Management of daily technical performance and quality assurance/control.
– Able to perform extensive bench work in Clinical/Forensic Toxicology.
– Research/Development in new testing and method update.

– Perform instrument maintenance and repair.
– Provide Clinical/Forensic interpretation and consultation.

– Provide in-service training and continuing education to staff.

– Supervision/management of staffing and productivity.

– Consultation/expert witness in Clinical/Forensic Toxicology, Pharmacokinetics and GC/MS data in over 50 cases in Federal, District and Circuit court in the state of California.




M.S. Forensic Toxicology, University of Florida

B.S. Chemistry, Creighton University, Omaha, NE



Certified by American Board of Forensic Toxicology (ABFT)

Licensed by State of California as Clinical Toxicologist Scientist

Licensed by Clinical Chemistry Scientist (ASCP)




– Responsible person (Director) of SAMSHA/NIDA laboratory and successfully set the laboratory to become certified by SAMSHA/NIDA.
– Have written many clear analytical procedures and instrument maintenance procedures (standard operating procedure – SOP) to meet the regulatory agency standards.
– Extremely cost conscious and resource efficient in setting up and maintaining laboratory operation.
– Aware of the regulations moral and business codes, either from local, state or the federal agents. These codes have been implemented into laboratory practice.
– Extensive experience and knowledge in resolving the daily problems in Clinical laboratory and Forensic Toxicology to assist Medical staff.
– Provide technical resource to laboratory and clients in area of Clinical and Forensic Toxicology.
– Matured management skills to implement projects, programs, motivate staff members, coordinate laboratory activity, and handle personnel problems fairly. Manage to the best utilization of manpower through proper organization.
– Promote in-service lectures and training for clients.
– The Toxicology and Medical technologists would gain benefits in learning more in depth of the procedures and instrumentation principles, various scientific disciplines, and knowledge in Clinical/Forensic Toxicology beyond their basic training.




– Forensic Toxicology 1 & 2
– Xenobiotic Biotransformation and Molecular Mechanism of Toxicity
– General Toxicology and Toxic Substances
– Management Diploma – 30 hours
– HPLC course/water company
– GC/MS courses for HP, Finnigan, MAT
– National Institute On Drug Abuse (inspector program for NLCP) Baltimore, MD
– Professional practice in Toxicology: Cincinnati, OH

– LCMS/MS training by ABI/Sciex


– Society of Forensic Toxicology

– California Association of Toxicologist

– International Association of Forensic Toxicologist (TIAFT)