Scientific Analysis Built to Withstand Scrutiny
Objective scientific and strategic advisory grounded in evidentiary discipline, regulatory understanding, and real-world complexity.
Holmes Research Group is a scientific and regulatory advisory firm providing expert witness and litigation support, analytical chemistry expertise, and strategic counsel in complex regulatory matters, including hemp, cannabis, and emerging industries.
Our work sits at the intersection of science, law, regulation, and public policy—where technical evidence must withstand scrutiny and complex decisions carry real consequences.
SCIENCE. STRATEGY. INFLUENCE.
SCIENTIFIC LEADERSHIP
Andrea E. Holmes, PhD
Dr. Holmes provides objective scientific analysis and expert testimony in matters involving regulatory interpretation, scientific evidence, organic chemistry, and complex technical investigations.
Professor of Chemistry, researcher, author, and scientific expert witness recognized for translating complex scientific issues into clear, defensible analysis for legal, regulatory, and institutional audiences.
OUR FOUR PRINCIPLES
Independent
01
Objective analysis. No agenda. No conflicts.
Rigorous
02
Decades of combined experience in high-stakes matters.
Objective
03
Evidence-based. Methodical. Defensible.
Trusted
04
Relied upon by attorneys, regulators, companies and policymakers.
TRUSTED WHERE ACCURACY MATTERS
HRG supports attorneys, regulators, executives, trade organizations, and policymakers confronting complex scientific, regulatory, and strategic questions.
Our work spans litigation, regulatory proceedings, legislative initiatives, and emerging industries where technical accuracy, evidentiary rigor, and informed judgment are essential.
We combine scientific expertise with strategic insight to deliver objective analysis, defensible conclusions, and clear communication when the stakes are high.
EXPERTISE
Integrated counsel at the intersection of science, law, and policy.
INSIGHTS
Analysis that informs what comes next.
REPRESENTATIVE ENGAGEMENTS
Litigation
Regulatory Proceedings
Legislative Initiatives
Product Evaluation
Scientific Due Diligence
Emerging Industries