Dr. Samuel L Kleinman PhD F-ABFT TC-NRCC
Office: 505-596-0212
Dr Samuel Kleinman is a double board certified forensic toxicologist; he is a Fellow of the American Board of Forensic Toxicology and a Toxicological Chemist certified by the National Registry of Certified Chemists. Dr Kleinman is currently the Chief of Toxicology for the Hamilton County Coroner in Ohio. Previously, Dr Kleinman was the chief of forensic toxicology for the state of New Mexico. He has been recognized as an expert in more than 40 state and federal trials. He is a member of the Publications committee for the Society of Forensic Toxicologists and mentors members on publishing and reviewing articles and abstracts for scientific journals.
Dr Kleinman has expertise in pharmacology, pharmacokinetics, impaired driving, sexual assault and blood alcohol interpretation. He offers consultation and education on interpreting laboratory results, chain of custody, workplace drug testing; and if appropriate, participates in depositions and trials. He has provided retrograde extrapolation, widmark calculations and drug impairment opinion testimony in criminal trials in both state and federal court settings. Dr Kleinman extensively consults in civil matters as a consulting expert, report writer or participant in depositions and trails as needed.
- Alcohol, Drug & DUI Testing
- Analytical Testing Labs
- Chemicals
- Criminal Law
- Drug Abuse
- Hazardous Materials
- Laboratory Medicine
- Marijuana
- Pharmacology
- Sexual Assault
- Spectroscopy
- Q: Please list your professional accreditations, degrees, licenses, and certificates granted:
- A: Bachelor of Science in Chemistry, University of California Berkeley
Ph.D. in Physical/ analytical chemistry, Northwestern University
Fellow - American Board of Forensic Toxicology
Toxicological Chemist - National Registry of Certified Chemists - Q: Please list your affiliations or memberships in any professional and/or industry organizations:
- A: Member - Society of Forensic Toxicologists
Committee Member - Publications Committee Society of Forensic Toxicologists - Q: Please list any teaching or speaking experience you have had, including subject matter:
- A: Mentored laboratory staff on expert testimony and the art of pretrial interviews
- Q: Have any of your accreditations ever been investigated, suspended or removed? (if yes, explain)
- A: no
- Q: On how many occasions have you been retained as an expert?
- A: 25
- Q: For what area(s) of expertise have you been retained as an expert?
- A: drug and alcohol testing and impairment.
Laboratory testing related to lead concentrations
Death involving drugs and/or alcohol
dram shop, automobile truck crash - Q: In what percentage of your cases were you retained by the plaintiff?
- A: 25 %
- Q: In what percentage of your cases were you retained by the defendant?
- A: 75 %
- Q: On how many occasions have you had your deposition taken?
- A: 1
- Q: When was the last time you had your deposition taken?
- A: October 2025
- Q: On how many occasions have you been qualified by a court to give expert testimony?
- A: 43
- Q: On how many occasions have you testified as an expert in court or before an arbitrator?
- A: 43
- Q: For how many years have you worked with the legal industry as an expert?
- A: 8
- Q: What services do you offer? (E.g.: consulting, testing, reports, site inspections etc.)
- A: consulting, reports, testimony, research
- Q: Please list any fees other than those stated above (E.g.: travel expenses, copy fees, etc.)
- A: travel expenses reimbursed at cost
Available Upon Request