I think the recent thread about how people can be compelled to keep searches and confiscations secret makes my point sufficiently clear. I think by "due process" you mean "according the law". By "due process", I mean in a very fair, transparent, limited and well-defined way.
edit: Specifically, this is a precedent that is a big step in the right direction for this kind of thing, IMO: https://news.ycombinator.com/item?id=5382891