We'll split the answer, sir.
From an investigative standpoint, there are two issues at play. The issue of what chemicals are found, Mr. Culver can address more specifically. The other portion of the answer would be that at times in investigations, evidence is there other than the chemicals that would tend to indicate what type of drug is intended to be produced. But as Mr. Culver will explain, many times when we show up at the lab and we see what's there, we're able to understand that. It gives us a clearer picture of what's going on.