Alcohol and drugs
Forensic Toxicologists - Expert Witness Services
Expert witness services in forensic toxicology for legal and law enforcement
About TOX Expert
Our Vision
Guiding you, using plain language, to easily understand toxicology results and reach informed decisions !
Our Mission
At TOX Expert, part of our mission is to deliver precise, easy to understand, reliable, and objective toxicological data interpretation and conclusions. TOX Expert is also proud to provide bilingual, unbiased, fair and impartial expert opinion on topics related to forensic toxicology.
Accountability, reliability and professionalism are the pillars of the company.
TOX Expert’s mission is to advance justice and integrity of every case we touch. We envision a world where accurate and science-based conclusions guide legal decisions. Trust TOX Expert to demystify science, help protect public rights, and support ethical and professional standards in every investigation.
We are committed to maintaining the highest standards of scientific integrity, confidentiality, and professionalism in every case we handle. Through continuous education and professional development, and a deep understanding of forensic science, we aim to provide our clients with the clarity and expertise needed to make informed decisions.
TOX Expert offers bilingual high-quality teaching/training on topics related to forensic toxicology, breath testing equipment, standards applied in the field, etc.
TOX Expert‘s teaching philosophy centers on respect, relevance and collaboration.
Introduction
Our History
TOX Expert was founded in 2024 by Christine Frenette, a forensic toxicologist with over 15 years of experience in the field. Given the lack of private forensic toxicologist services in Canada, Christine took it upon on herself to offer this unbiased service to all and to crown or defense lawyers in criminal or civil matters where alcohol and/or drugs results matter.
Christine Frenette
Christine Frenette worked for 14 years as a bilingual Alcohol and Drug Forensic Toxicologist for the Royal Canadian Mounted Police (RCMP), providing expert witness testimony all over the country.
She earned her Bachelor’s degree in Chemistry from Laval University in Quebec City. She has an Analytical Chemistry and Toxicology Master’s degree from Guelph University and a second Master’s degree in Forensic Toxicology from the University of Gainesville in Florida.
She has focused her career on alcohol and drug impaired driving; data analysis and interpretation, results reporting, and testifying. She did over 2200 alcohol only analysis and authored over 2100 reports.
She has extensive experience teaching and training others - fellow toxicologists (internally at the RCMP, but also on the international learning platform https://drugimpairment.com/courses/alcohol-essentials-effects-on-driving/), university students (Saint Mary’s University in Halifax, Trent University in Peterborough and Carleton University in Ottawa). She has trained hundreds of police officers on toxicology principles all over Canada.
She has also conducted seminars for judges and lawyers on alcohol and drug impairment, the relevancy of results and the impact of substance abuse on driving abilities.
In 2018, she became a member of the Canadian Society of Forensic Science (CSFS). Since 2020, she has been sitting on the Alcohol Test Committee (ATC), one of CSFS’ subcommittees, offering scientific advice to the Canadian Federal Minister of Justice on matters pertaining to alcohol testing in cases of drinking and driving, as well as advice related to new alcohol screening devices and approved instruments.
Since 2018, Christine has also been sitting on the ISO (International Organization for Standardization) Technical Committee for the standardization and guidance in forensic science (ISO/TC 272), representing Canada and ensuring toxicology is properly considered in broad general areas such as the detection and collection of physical evidence, the subsequent analysis and interpretation of the evidence, and the reporting of results and findings.
Christine is known to be approachable, easy going and straightforward. She spares no time or effort to help others.
Our Expertise
TOX Expert’s expertise is focused on alcohol-impaired driving matters, including alcohol absorption, distribution, metabolism and elimination, as well as alcohol extrapolation calculations. TOX Expert also specialises in breath testing principles, use of breath testing instruments and breath testing training for police officers.
Drug impaired driving, sexual assault and other criminal cases involving alcohol and/or drugs are also part of our expertise.
Continuing education through involvement with national and international committees and through conferences ensure up-to-date knowledge about the latest techniques and technologies.
Services
Expert Witness Testimony
TOX Expert’s witness testimony services provide knowledgeable testimony in court thanks to years of experience. TOX Expert is highly trained and experienced in forensic toxicology, and can provide reliable and impartial testimony for your case.
Toxicology Data Interpretation
TOX Expert’s data analysis and interpretation service provides comprehensive findings for a wide range of drugs, chemicals, and others. TOX Expert ensures accurate and reliable interpretation of results, which can be used in criminal investigations, civil matters, workplace drug testing, and more.
Training in Forensic Toxicology
TOX Expert’s Training service is tailored to your needs. Professional development for the legal community or law enforcement in forensic toxicology can be customized to your needs. Standardized training can be provided, such as the New User course for the Intox EC/IR II, and training on the alcohol screening devices Intoximeters Alco-Sensor FST or Drager Alcotest 7000. We deliver a general forensic toxicology course for all with customized content and language adapted to the audience.
Other Services
Among other services, we can interpret the results of alcohol or drug testing in workplace testing or for custody challenges.
You have another request? Send TOX Expert an email explaining your need, and all the best efforts will be made to help you out.
Fees
Hourly fees or as per contract*
Expert Witness
Expert letter/report
Expert testimony in court (by video conference or in person)
Briefing notes or court preparation, such as specialized line of questioning, for impaired driving cases
Data interpretation/ File review
Analytical data interpretation - Report with conclusion
File review - Technical review for completeness and accuracy
Training
General presentation on forensic toxicology
Specialized presentation (eg. Charter argument, breath testing, etc.)
Structured course (eg. Intox EC/IR II New User Course, etc.)
Personalized presentation/course based on client’s needs
* Traveling expenses, per diem and incidentals not included and will be added for in-person attendance.