Tape is wonderful at preserving evidence - fingerprints, hairs, fibers. Tape preserves this, especially on the sticky side, even if the body's been out there for a year.
“I get anxious about a lot of things, that's the trouble. I get anxious about everything. I just can't stop thinking about things all the time. And here's the really destructive part - it's always retrospective. I waste time thinking of what I should have said or done.”