Match the sample to the batch
Find the sample ID, collection date and material description. If a report says ‘leaf sample P7’, look for a record linking P7 to the batch. Without that link, the results cannot be confidently attributed to the plants in question.
Read the scope of the result
Check the method, result and any stated detection limit. ‘Not detected’ applies to the stated parameter, sample and method. It leaves other parameters and later changes open.
Example: a missing link
The report identifies P7 and the cutting label says C12. Ask for the record connecting them and the collection date. Until then, note that the report exists and the batch association is unverified.