

HD coin photography
I would throw that under the same kind of forensic pseudoscience bunk as ballistic matching of bullets and matching pens/pencils to handwriting. A detective may try to scare you with it in an interrogation, but there is no logical way you can get any kind of certainty with that.
That’s most usable explosives from my limited understanding. A small primary explosive charge setting off a more stable bulk explosive, whether that be ANFO or C4 or something else.
He may have already had dynamite, but not a Uhaul full of dynamite. Which would have been difficult and quite dangerous I imagine.
The same losers come by gun stores and ask how to convert their AR-15s into machine guns. Actual police work is difficult I guess, so they go on these fishing expeditions.