In the US, there are Federal statutes and 50 state statutes which cover this subject. To find what you are looking for, search your state's statutes, or you can look at USC TITLE 18 PART I CHAPTER 47 § 1030 which covers quite a lot within the US.
Two things to keep in mind:
1) Statutes do NOT care about the medium. They tend to use language like "network", but do not specify things such as whether the network is wire, wireless, or string.
2) Unless you have had legal training in reading statutes, the statute(s) cited may not make a lot of sense.
A final note: If you can't find something specific for your state, I'll be happy to help you find a given statute. However, I'm not about to argue words and the lack of mention of medium with in that statute. I have had training in reading statutes and know how the legal system works, but if you don't like my interpretation, feel free to hire a lawyer within you jurisdiction.



