Some confirmations are logs, not tests. If the Phase II log shows a compost peak above 60 °C, ICAR-DMR's manual explains olive green mould and a weak spawn run with one number, because above 60 °C the thermophilic organisms that finish compost are killed. If no ammonia check was made at spawning and the crop shows ink caps, the missing check is the evidence.
At crop end, NHB's model DPR sets cook-out at 70 °C in the compost for 12 hours to kill pathogen spores. Stop gathering evidence once the next action is clear; write the decision, the date and the one result that would reverse it, then watch the count.