[marvin]

How much evidence is required to stake your claim to whatever goods were seized? "Innocent until proven guilty" is still a founding principle of the rule of law, although your arguments make sense if we don't consider that part of it. The US justice system has in many cases removed itself quite far from the ideal concepts of the rule of law, and I don't think this is a good thing.

[anigbrowl]

A preponderance of it. There;'s no blanket answer to a question like that, it depends on the circumstances of the individual case.