THCA Expert Witness | Hemp vs. Marijuana Classification

Ted Menadier, MBA provides expert witness services in THCA litigation matters arising in criminal prosecutions, civil disputes, regulatory enforcement actions, and administrative proceedings nationwide. THCA — tetrahydrocannabinolic acid — is the non-intoxicating precursor to Delta-9 THC found naturally in cannabis plants. When heated through smoking, vaporizing, or cooking, THCA converts to Delta-9 THC through a process called decarboxylation. This chemical relationship sits at the center of one of the most actively litigated issues in cannabis and hemp law today.

The 2018 Farm Bill defined hemp as cannabis containing no more than 0.3% Delta-9 THC on a dry weight basis. A cannabis plant or product may test below that threshold for Delta-9 THC while containing significant concentrations of THCA — sometimes exceeding 20%. How that product should be classified under federal and state law is a question that attorneys, prosecutors, regulators, and courts are actively working through. The answers vary by jurisdiction, testing methodology, and applicable legal framework — and expert testimony on the science, the testing context, and the industry realities is increasingly essential to resolving these disputes.

Available for retention nationwide. Contact Ted →

THCA and Criminal Defense

Criminal matters involving THCA flower are among the most active areas of cannabis litigation in the country. Products marketed and sold as hemp based on Delta-9 THC testing are being seized and prosecuted in states where marijuana remains illegal, raising questions about classification, testing methodology, and applicable standards. Defense attorneys in these matters frequently require expert analysis of the product itself, the distinction between THCA and Delta-9 THC, what the COA actually shows, and how different testing methods affect the reported numbers.

I provide expert analysis and testimony in THCA criminal defense matters involving product identification, COA interpretation, and the scientific distinctions between THCA and Delta-9 THC. I can explain to defense counsel, judges, and juries what the laboratory data shows, what the difference between GC and HPLC testing means in practical terms, and how those differences are relevant to the matter at hand. My role is to provide scientific and industry context — not to draw legal conclusions about classification or guilt.

THCA and Civil Litigation

THCA disputes arise in civil litigation across a wide range of contexts — business disputes between cannabis and hemp operators, insurance claims involving THCA product seizures or compliance failures, contract disputes involving THCA flower supply agreements, and regulatory enforcement actions involving THC threshold compliance. I provide expert analysis and testimony in civil THCA matters involving product identification, crop valuation, crop loss, business interruption, economic damages, COA interpretation, and industry standards.

THCA and Regulatory Matters

The regulatory treatment of THCA products varies significantly by state and continues to evolve at both the state and federal level. Regulatory enforcement actions involving THCA products require expert analysis of product identification, testing context, and industry standards. I provide expert analysis and testimony in regulatory proceedings involving THCA product identification, what COA results mean in an industry context, and how different testing methodologies produce different results from the same sample — without drawing legal conclusions about how applicable regulations should be interpreted.

Understanding COAs and Testing Methods

Certificates of Analysis are a standard part of cannabis and hemp commerce — every compliant product should have one, and COAs are frequently central to litigation involving THCA products. I can interpret COA results in the context of cannabis cultivation and industry practices, and explain what the reported numbers mean in practical terms.

Two testing methods are most commonly used in the cannabis and hemp industry — Gas Chromatography (GC) and High-Performance Liquid Chromatography (HPLC) — and they produce meaningfully different results from the same sample. GC uses heat during analysis, which converts THCA to Delta-9 THC, potentially producing higher Delta-9 THC readings. HPLC measures THCA and Delta-9 THC separately, without converting one to the other. Understanding what each method measures and how those differences affect the reported numbers is frequently important context in both criminal and civil THCA matters.

My role is to help attorneys and courts understand what COA results mean and how testing methodology affects those results — not to validate or challenge the laboratory work itself.

Areas of Expertise

• THCA flower identification and analysis

• Hemp vs. marijuana identification

• Certificate of Analysis (COA) interpretation

• GC vs. HPLC testing context and practical differences

• Delta-9 THC vs. total THC vs. THCA explained in industry context

• Cannabis and hemp cultivation practices

• THCA product valuation and crop loss

• Economic damages and business interruption

• Industry standards and accepted practices

• Cannabis genetics and propagation

Case Types

• Criminal defense matters involving THCA flower

• Federal THCA transportation and classification disputes

• THCA product regulatory enforcement actions

• Civil litigation involving THCA business disputes

• Insurance claims involving THCA product seizures or compliance failures

• Contract disputes involving THCA flower supply agreements

• COA interpretation disputes

• Hemp compliance matters involving THCA concentrations

Services Provided

• Case review and consultation

• Expert reports

• Deposition testimony

• Trial testimony

• Rebuttal expert services

• COA interpretation

• Regulatory proceeding support

Available Nationwide

THCA litigation is active across the country — in states where these products are widely available, in states where they are actively prosecuted, and in federal courts where interstate commerce and Farm Bill compliance are at issue. Ted Menadier provides expert witness services in THCA matters in state and federal courts nationwide, working with both defense and plaintiff counsel.