True Crime Story →[More:]
I met an ex-cop one day and asked him what was the funniest/strangest thing to happen to him on the job (he worked in a small college town). This is what he said.

There was a pharmacy break-in, drugs taken, of course. Looks like two perps, and the cops quickly identified one of them. Cops go to the apartment of the known suspect and find him, shockingly, OD'd.

They don't know the second perp, so they store tissue samples of the first guy on the chance of an eventual capture and trial.

Cut to two years later. Into the police station walks a greenhorn IRS agent. He's looking for help tracking down the OD guy, asks this cop if they know where to find him. Sure they do!

The cop walk back into the evidence room and returns with a grocery bag full of various organs and hands it to the IRS agent, who promptly turns green and flees the station.

This anecdote will make its way into one of my scripts one day.