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Expert Witnesses & Forensic Consultants Directory

Engineering & Science

Engineering and Science expert witnesses provide opinions on issues of science, technology, engineering and mathematics. The engineers and scientists profiled in this directory may provide forensic analysis of material and structural failures through destructive and non-destructive testing and failure analysis. These experts may investigate allegations of defects in designs, construction and manufactured products. They may have specific expertise in chemical, civil, electrical or mechanical engineering, traffic engineering, structural engineering, aerospace engineering, geotechnical engineering, industrial engineering, automotive engineering, petroleum engineering and safety engineering, as well as scientific specialties such as chemistry and geochemistry, food and drug, entomology, polymers and plastics, and other scientific and engineering disciplines.

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John C. Fetzer — Fetzpahs Consulting

Chemist, with 40 yr experience as a research analytical chemist, acts as an expert witness in petroleum and its refined products, biofuels, petrochemicals, hydrocarbon chemistry, chromatography, spectroscopy, polycyclic compounds (PAHs), water analysis.

Charles M. Curley

Electromechanical engineer, 30+ yr in the design and development of industrial and consumer products, incl. electromechanical devices, vending machines, printers, printer cartridges, keyboards & forensic instruments. Experienced (40+cases + 5 trials )

Carl H. Josephson, PE, SE — Josephson-Werdowatz & Associates, Inc.

Consulting structural engineering services on over 1,500 matters. Clients include plaintiffs, defendants, and cross-defendants. Extensive trial experience. Licensed in 31 states, our work extends nationally and internationally.

Rosemary Coates, MBA — Chinese Manufacturing and Global Supply Chains Expert

Provides expert witness testimony and opinions in Chinese manufacturing and sourcing supply chain matters, incl. forecasting, planning, procurement/purchasing, warehousing, distribution, import/export, trade compliance, ERP systems implementations.

Herbicide & Horticulture Expert — Dr. Hannah M. Mathers

Horticulturist, 30+ yr., herbicide expert, provides expert witness consulting, testing, written reports, site inspections, statistical analyses in horticulture, pesticides, agriculture chemicals, environmental sciences, and assessment and evaluation.

Justin P. Schorr, Ph.D.

Transportation engineering specialist, specific to collision reconstruction, traffic engineering and highway safety, highway design, intelligent transportation systems, vehicle dynamics, crash investigation and analysis, and vehicle standards.

R. Scott King, BSME

Automotive/Mechanical Engineer, 35+ years, specializes in the mechanical aspects of automobiles, small trucks, commercial trucks and trailers, motorcycles, wheeled recreational equipment, airport ground equipment, including black box data retrieval.

Harry Direen, PhD, PE

Electrical engineer, 40+ yr, specialized in control systems, embedded systems, digital signal processing, software design/development, electronic hardware design/development, product reverse engineering and patent forensics. Experienced expert witness.

Colorado Springs, CO

Andrew J. Davidoff, Ph.D, P.G.

Dr. Andrew Davidoff, PG provides geologic and geophysical forensic consulting and expert witness services. His expertise includes oil and gas, renewable energy, seismic, environmental issues like landslides and erosion, and everything under the ground.

Roadway Construction Expert — William C. Stein, Jr., PE, CCM

Roadway construction and materials engineering expert, 40+ years experience, consults on issues of road, street, heavy highway, temporary traffic control, runway and earthwork, asphalt, concrete, coatings, CPM scheduling, rights-of-way, work zone safety.

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Experts in the News

Credentialing Expert Witnesses In Unlicensed Professions

Oct 19 — Qualifying as an expert witness can be a bit slippery in matters without clearly defined expert witness requirements, as this premises-liability case exemplifies.

Federal Rules Committee Still Reviewing AI Expert Witnesses

Aug 26 — After more than three years of review, the federal Advisory Committee on Evidence Rules has decided not to advance proposed Rule 707 artificial intelligence (AI) evidence, opting instead to gather further input.

Failing to Examine Plaintiff and His Records Gets Medical Expert Tossed

Aug 25 — Failing to examine a plaintiff, failing to review all of the plaintiff’s medical records, and citing "facially irrelevant" medical literature will can — unsurprisingly — get a medical expert witness tossed, as in this case.

Expert Witness Testifying About ‘Mortal Sin’ Leads to Call for Mistrial

Aug 26 — Massachusetts bars the use of religious beliefs from being used to attack or support the credibility of a witness, but that did not stop forensic psychologist Dr. Kirk Heilbrun, a prosecution rebuttal witness, from trying in the Lindsay Clancy trial.

New AI-Discovery Rulings: Risks for Experts

Oct 26 — Two federal courts examining very similar facts — experts using AI to help prepare their reports — have reached different conclusions about what has to be turned over. Unsettled law leaves the expert’s AI workflow dependent on which court is asking.