There is a well-established due process scheme for seizing assets. It has a lower standard of proof because it establishes only that a crime took place and that an asset is linked to the crime, without establishing culpability.
Calling it due process is like calling ROT13 encryption. It is a sham. What's well-established is the fact that asset forfeiture is abused far and wide, and for every type of asset and supposed crime.
What's well established is that it has been abused. What's not well established is how widespread the abuse is, because, obviously, reporters only write about the abuses.