Stuart D. Bagley, MS, CIH, CSP
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Industrial Hygiene & Environmental Expert Witness
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Certified Industrial Hygienist (CIH #3534)
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Certified Safety Professional (CSP #11829)
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M.S., Occupational & Environmental Health — Wayne State University Schools of Medicine and Pharmacy
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Former Federal OSHA Compliance Officer
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Former EHS Manager – General Electric
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Former EHS Manager – General Dynamics
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30+ Years of Industrial Hygiene & EHS Experience
Stuart D. Bagley
Certified Industrial Hygienist
Certified Safety Professional
Expert Witness Areas of Practice
Trusted expertise in mold, indoor air quality, occupational exposure, environmental contamination, and workplace safety investigations.
- Industrial Hygiene & Occupational Exposure Exposure assessment, workplace hazard evaluation, OSHA matters, and industrial hygiene investigations.
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Indoor Air Quality & Mold
Moisture intrusion, mold assessment, ventilation, occupant complaints, and indoor environmental conditions. -
Workplace Safety & OSHA
OSHA standards, workplace safety practices, hazard recognition, accident investigation, and regulatory compliance. -
EMF & EMI
Independent evaluation of electromagnetic field and electromagnetic interference exposures and related claims.
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Environmental Health
Environmental exposure assessment, contamination investigations, and technical support for litigation.
Education and Professional Credentials
Stuart D. Bagley, MS, CIH, CSP earned a Master of Science degree in Occupational and Environmental Health through the Wayne State University Schools of Medicine and Pharmacy.
His graduate education included industrial hygiene, environmental exposure assessment, toxicology, epidemiology, workplace health protection, and environmental health sciences.
Mr. Bagley is a Certified Industrial Hygienist (CIH) and Certified Safety Professional (CSP) with more than 30 years of experience providing industrial hygiene consulting, indoor air quality assessments, environmental investigations, litigation support, expert reports, depositions, and expert witness testimony throughout the United States.
His professional experience includes indoor air quality investigations, occupational exposure assessments, mold investigations, environmental health evaluations, and workplace safety matters for attorneys, insurance companies, businesses, and government agencies.
Nationwide Expert Witness Services
Services include case reviews, technical evaluations, expert reports, depositions, and trial testimony throughout the United States.
We provide case reviews, technical evaluations, expert reports, depositions, and trial testimony nationwide.
Why Retain a Certified Industrial Hygienist for Litigation Support?
Cases involving occupational exposures, mold, indoor air quality, environmental contamination, workplace hazards, or occupational disease often require specialized expertise to evaluate exposures and determine whether conditions are consistent with recognized standards and scientific evidence.
A Certified Industrial Hygienist (CIH) can evaluate exposure data, workplace conditions, technical records, sampling results, and applicable standards—and translate complex findings into clear, defensible expert opinions for attorneys, judges, and juries.
Litigation Support Services
Case Review
Review case files, technical reports, and supporting documentation.
Expert Reports
Preparation of detailed expert witness reports.
Deposition Support
Professional deposition testimony and consultation.
Trial Testimony
Clear, objective, and scientifically supported courtroom testimony.
He is a Certified Industrial Hygienist Expert Witness and Certified Safety Professional with more than 30 years of experience in industrial hygiene, indoor air quality, environmental consulting, Occupational Health Consulting, and expert witness services.
His extensive experience includes environmental investigations, exposure assessments, litigation support, expert reports, depositions, and courtroom testimony for attorneys, insurance companies, businesses, and government agencies.
Clients Served
Attorneys & Law Firms
Trusted by legal professionals for objective, science-based expertise.
Insurance Carriers & Claims Professionals
Supporting insurers and adjusters with thorough investigations and analysis.
Commercial Property Owners
Providing clarity and insight for property-related disputes and claims.
Property Management Companies
Helping protect assets and resolve complex property challenges.
Healthcare Facilities
Assisting healthcare organizations with facility assessments and claims.
Government Agencies
Partnering with federal, state, and local agencies on critical investigations.
Educational Institutions
Supporting schools, colleges, and universities with expert assessments.
Manufacturing & Industrial Facilities
Delivering technical expertise for industrial operations and disputes.
Utilities & Energy Companies
Providing analysis and solutions for energy and utility infrastructure.
Businesses & Corporate Clients
Serving companies of all sizes with dependable expert support.
Frequently Asked Questions
What qualifications should an industrial hygiene expert witness have?
Can you provide expert testimony in mold litigation cases?
Do you work with plaintiff and defense attorneys?
What types of environmental cases do you support?
Can you review technical reports and evidence?
Do you provide deposition testimony?
How quickly can a case be reviewed?
What industries do you serve?
How much does an industrial hygiene expert witness cost?
Can you assist before litigation is filed?
Do you provide rebuttal expert opinions?
Have you testified in deposition and trial?
Can you review another expert's report?
What educational background should an industrial hygiene expert witness have?
What is a Certified Industrial Hygienist (CIH)?
Need a Certified Industrial Hygienist?
Contact Stuart to discuss your case, review technical documents, evaluate environmental evidence, or determine whether expert testimony may be appropriate.
Request a Confidential Case Consultation