Where it is necessary to move aircraft wreckage, mail or cargo, sketches, descriptive notes, and photographs shall be made, if possible, of the original positions and condition of the wreckage and any significant impact marks."
In other words, this is not the aviation equivalent of a knock-over at the local 7-Eleven.
BUT. Suspending the idea that a show about law enforcement would bother to research existing laws governing the investigation of aviation accidents and returning to the episode at hand, we get back to the heart of the matter: eight people went down. Or, as Delko puts it, eight souls. Caine says, "Eight souls unaccounted for, okay." Before the two men can get into the metaphysics of plane crashes, Delko has a frustrating moment with the cell phone, blurting out, "Look, they're advising we wait for fire --" Caine doesn't care what "they" say: "We were four miles away when we took the call. First responders provide immediate aid, no questions asked!" Shouldn't Caine be addressing that comment to the people on the cell phone, especially since Delko relays it only as, "We're taking this." Caine then orders Delko, "Call MDPD" -- God help me, I thought of Mindy Page Davis Page for a moment there; MPDP, MDPD, it's understandable -- "tell then I want to set up a forward command post at levee 67 -- mobile recovery, biohazard gear, the works. And then call in the night shift. We need all hands on deck." What, is Caine's phone ear broken so he can't make the call himself?