Cheska Richards, PhD, NRCC Expert Witness
Curriculum Vitae

Forensic Toxicologist w federal court experience

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Specialties & Experience of this Expert Witness

General Specialties:

Toxicology and Laboratories & Testing

Keywords/Search Terms:

drug testing, opiate, hearing, exposure, dermal, false positives, fentanyl, methamphetamine, inhalation, touch exposure, toxicology, Delta 8, cocaine, environmental exposure, low level, residual, Marijuana, passive, metabolism, elimination

Education:

MS 2022 Biotechnology, Johns Hopkins; PhD 2012 (Drug Discovery focus) Marine Science, University of South Florida; BS 2006 Biology, University of Texas

Years in Practice:

12

Number of Times Deposed/Testified in Last 4 Yrs:

20

Additional Information

I am a PhD-level forensic and clinical toxicologist with over a decade of experience advising organizations, attorneys, and courts on complex toxicological, pharmacological, and regulatory matters. I served as the toxicologist for the federal courts drug testing contract for 3 years. In that role I testified at federal revocation hearings over 20 times concerning drug testing and wrote hundreds of formal letters of data interpretation for the courts. I also corresponded with attorneys and probation when the drug testing outcome may have been due to exposure or medication or diet. I have a National Registry of Certified Chemists board certification as a Toxicological Chemist, a MS and a PhD, and many years of experience directly operating laboratories.