The expert work of toxicologists can identify whether someone has used or is using drugs, legally or illegally, or has been exposed to other substances including medication and alcohol. 

Brassets Group is proud to work with the following expert toxicologists who are leaders in their fields:

Dr Michelle Williams

BSc (Physiology), MBA, MDR, M Clin Tox PhD

Dr Williams holds a PhD in Toxicology in the development of testing methods for drugs of abuse. Upon completion of her PhD, she was a research fellow with the Clinical Pharmacology Department at the University of Newcastle where her research focus was Medicinal Cannabis. Dr. Williams is an Independent Toxicologist specialising in Drug and Alcohol testing, including the use of hair as a matrix for drug & alcohol testing.

Dr. Michael Schaffer

BSc Pharmacognosy and Pharmacology, Pharm Tox PhD

Dr Schaffer has extensive experience in forensic toxicology and drug testing. Dr Schaffer serves as a laboratory inspector for the Substance Abuse and Mental Health Services Administration’s National Laboratory Certification Program, formerly the National Institute on Drug Abuse (NIDA).

The author of numerous scientific publications, Dr Schaffer has served as an adjunct professor in the Department of Forensic Pathology and the Department of Criminal Justice at the University of Illinois. He also has served on the board of directors of the Society of Forensic Toxicologists, the American Academy of Forensic Sciences, and the American Board of Forensic Toxicologists. Dr Schaffer is Board certified in Forensic Toxicology.

Results Interpretation

For Hair Drug and Alcohol testing interpretation, we recommend downloading our Results Interpretation Document, available for download here .

This document includes information relating to:

  • Hair Drug and Alcohol report format and interpretation.
  • Substance report levels interpretation.
  • Cut off levels.
  • Detection periods.
  • External contamination.

Toxicology Reporting

Brassets Group offers further toxicology reporting upon request for Hair, Oral Fluid, Urine and Blood test results.

Reports are expert statements from our Toxicologists detailing the detection, isolation, and identification of drugs or alcohol in each sample. The expert statement will also include a detailed interpretation of the results and a conclusion of the findings. 

Obtaining a toxicology report can provide a clearer understanding of the results, which can assist, along with other evidence, toward the overall outcome of a case.

Toxicology reports can vary based on the specific needs of each client.
However, they generally include:

  • Matrices for testing: Hair, oral fluid, urine, blood and/or other bodily fluids.
  • Testing methods: What was tested for and the period of detection.
  • Detailed analysis of lab results: Analysis of results and how this correlates with ingestion. Cross-analysis with any statements provided by the donor or findings identified by the requesting authority.
  • Cited research to support findings: Cited research including copies and interpretation of how this supports the Toxicologists findings.
  • Explanation of the findings: In summary, the Toxicologist will provide a conclusion based on the interpretation and research findings.

Circumstances requiring Toxicology reports can vary widely and can include:

  • Child safety matters
  • Custodial cases
  • Drink spiking/drugging
  • Drug facilitated crime/sexual assault
  • Drug dependency/Rehabilitation programmes
  • Workplace monitoring/Return to work programs
  • Therapeutic drug/medication monitoring

Toxicology reports can be issued between 24 hours to 3 weeks from the request. The amount of research and analysis required will determine turn-around times and cost.

Our team will provide a quote and timeframe upon request.

Please contact us here or email us [email protected]