Back when I ..er.. sold magic mushrooms for a living (legally, I might add), I had a couple of sets of electronic scales taken by the Police and after a few months of no actual charge (again, because it was legal) we were able to get our hands back on them.
They'd also taken some of our stock and some other bits and bobs alongside, but I had no real interest in getting back x month old thoroughly-rotten fungal matter, just the scales, which were quite good ones and not cheap.
Annoyingly, the rotting fungal matter had conspired with the batteries to thoroughly rot the contacts, so we had to throw the scales out anyway.
Can't be too annoyed - this happened early on during those few short years where fresh mushrooms were legal, and we DID just try and walk into a festival with 4 large cooler boxes full of psychedelic wares. I shouldnt've been TOO surprised to not have been greeted with warm smiles and open arms by Police-backed security.