Here is an interesting post about the problem of law that governs the public not being publicly accessible.
Specifically, the problem is that some laws incorporate by reference standards that have been established by non-governmental entities that can only be accessed by paying.
The post describes a plan in which an individual plans to buy access to the information and then make it public (I guess there might be intellectual property issues here).
I am no expert on his area of the law, but I would wonder about the due process issues involved when you are in violation of the law, and the only way you can get full notice of the law is by paying a hefty fee.
Its a very worrying area, at least as presented in the post to which I link. Its a particular problem for those without resources or counsel. Its also a strong argument for law and public libraries to have comprehensive access.