Civil asset forfeiture in the US is literally highway robbery, with the police acting as armed thugs instead of having any remote interest in protecting people. Considering that local departments frequently get to keep portions of what they seize, the system creates an active incentive for police to steal more money on even flimsier evidence. It's a disgrace, and I can't even fathom how the current system (whereby owners have to prove the money was legit) doesn't violate the 4th amendment.
These were my thoughts exactly. It is no different from trying to prove my ownership of anything else. It would be difficult to prove I own a lot of things I have other than my own word, including the $5 in my wallet now.
I need to get a real signature. Please let me know if you're into this sort of this and willing to help for the price of say, on the house.