^^sting operations or the internet equivalent of wiretapping
look up findlaw on google, I think its findlaw.com and do a search there, then goto the US govt's website for the attorney general and also look up the penalties under the US CFR's---> there are specific laws these days for system intrusion, defacing websites, data theft, etc etc. Most are fairly broad in nature and still going thru the process of being tweaked thru their usage in the court system itself--laws do get changed over time, precedents get set which define usual penalties and whats expected.
Id look up Kevin Mitnick as well if your not familiar with his case or history. Some of the other notable hackers stories will lead you to other avenues of info.
Case files and transcripts of public trials are public domain and can often be had for free or for the cost of making a copy. Locally, federal case histories and filings are $1.00 per page, but can be had online for free once registered with the federal court.
Alot of this you can do online, but your public library is a good source too.