Are administrative laws criminal law or common law, or something else altogether?
They are corporate laws - only. Their problem is fourfold: 1) they are written to hide that simple fact; 2) the government is allowed to presume they apply and haul people before a corporate court; 3) that corporate court does not have to admit it's limited jurisdiction and can presume you accept its power over you simply because you appear before it; 4) no formally admitted way exists for you to deny its authority or make it prove its authority.
Other than that, it's perfectly legal.