Expert Witness Services

Dr. Michael St. Denis

Your Trusted Automotive
& Emissions Expert Witness

25+ years of hands-on vehicle emissions testing, patent litigation support, and courtroom testimony for top law firms and government agencies.

2 US Patents 100+ Publications US EPA Research D.Env. UCLA
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Dr. Michael St. Denis

About

Meet Dr. Michael St. Denis

Principal · Revecorp Inc.

Dr. St. Denis is a leading authority in vehicle emissions testing and automotive compliance. Over the past 25 years, he has:

  • Testified as an expert witness in high-profile vehicle emissions cases (Volkswagen, Audi, Porsche, Stellantis, Diesel Brothers, and more)
  • Demonstrated tampered vehicles in court and explained advanced emissions control systems to judges and juries
  • Provided expert patent litigation services related to test equipment technology
  • Supported government agencies and fleets with emissions and safety inspection programs

By bridging technical expertise with real-world courtroom experience, Dr. St. Denis delivers the clarity and confidence needed to navigate complex legal challenges.

Resume
Depositions Available upon request - please contact us

High-Profile Cases & Partnerships

Trusted by leading law firms and involved in cases with some of the biggest names in the automotive industry

High-Profile Cases
Audi
Porsche
Volkswagen
Fiat
Stellantis
Diesel Brothers
Audi
Porsche
Volkswagen
Fiat
Stellantis
Diesel Brothers
Law Firm Partnerships
Sidley Austin
Lieff Cabraser Heimann & Bernstein
BFA Bleichmar Fonti & Auld LLP
Conservation Law Foundation
Sidley Austin
Lieff Cabraser Heimann & Bernstein
BFA Bleichmar Fonti & Auld LLP
Conservation Law Foundation

Expert Services

Comprehensive expert witness and consulting services across vehicle emissions, litigation, and regulatory compliance

Expert Witness for Vehicle Emissions

Expert Witness for Vehicle Emissions

Testimony for tampered vehicles, emissions control systems, and compliance issues.

Patent Litigation Support

Patent Litigation Support

Technical analysis and expert testimony on vehicle testing equipment and technology.

Government & Fleet Consulting

Government & Fleet Consulting

Program development for emissions inspection, data collection, and regulatory compliance.

Defeat Device Investigations

Defeat Device Investigations

Identification and analysis of illegal modifications, "defeat devices," or tampering with emissions systems.

Data & Diagnostics Services

Data & Diagnostics Services

Innovative tools (TransitCheck, TransitLock, TransitLinq) to gather real-time diagnostics and ensure vehicle integrity.

Vehicle Testing & Certification

Vehicle Testing & Certification

Assistance with certification-level emissions testing for manufacturers, engines, and fleets.

We’re Here to Help

Whether you need expert testimony, guidance on vehicle emissions compliance, or have a general inquiry, we want to hear from you. Our team values open communication and is dedicated to providing prompt, helpful responses.

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Fill out your details below with the service that you need, date and preferred hour and we’ll get back to you to book an appointment.