1. Confirm the sample
Check the sample ID, batch or lot, collection date and who collected it. Confirm it matches the material in the case.
2. Check units and basis
Potency may be reported as percent, mg/g or mg/unit, on a dry-weight or as-received basis. Compare like with like.
3. Find THC, THCA and total THC
Locate delta-9 THC and THCA separately, and any total THC figure. Note how total THC was calculated.
4. Note limits and uncertainty
Look for limits of quantitation and any measurement uncertainty. A result near a threshold should be read with them in mind.
5. Look for red flags
- Sample does not match the case material
- Missing dates or collector
- Units inconsistent with other reports
- Results inconsistent with other COAs for the same lot
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Ted Menadier, MBA provides expert witness services in litigation involving cannabis, marijuana and hemp cultivation, crop loss, crop valuation, business operations, insurance claims, testing, classification and related industry matters. Request a consultation or see information for attorneys.