IANAL: Last I heard, the logic was that you, the owner, are not accused of anything. Your property is accused of being used in a criminal act. Your property is guilty until proven innocent, because it is not a person protected by the bill of rights.
The idea was to seize the assets of organized crime without having to completely prove they were committing a crime (which is hard). The road to hell is paved with good intentions. (Also, if your plan is to use the bill of rights against a prosecutor, you need a better plan.)