Hmm, well I suppose for summary, Meesei will not find any substantial evidence that points to a possible poisoning at another time. The second result for the test lands the time of poisoning roughly during the meeting again. If Grolak was instructed to search Harriet's room at the time you say, you had better talk to him about the results. There's also the matter of Oswall deciding Caleb's punishment, but whether you wanted to do that before or after the trial is up to you.