I wonder if they Dusted for Fingerprints...
From Spinal Tap (about trying to see on whose vomit drummer Stumpy Joe choked).
DEREK: You know they can’t prove whose vomit it was...they don’t have the facilities at Scotland Yard....DAVID: You can’t print…there’s no way to print a spectra-photograph.
NIGEL: You can’t really dust for vomit.