Not sure if this counts as a legal issue but remember when digital forensics was used to put the Attorney General of Maine in prison? Assistant attorney general for Maine was caught up in child pornography!
On February 17, 2009, James M. Cameron was indicated on 16 charges of trafficking in child pornography. Prosecutors alleged that between July 2006 and January 2008 Cameron had uploaded child pornography to a Yahoo photo album using five different aliases. According to an order by a federal judge dated Sept. 28, 2009, ""It begins with two referrals from the (National Center for Missing and Exploited Children) to the Maine State Police on August 3, 2007, and September 6, 2007, which itself had been triggered by a report from the Internet Service Provider Yahoo. Yahoo reported locating numerous images of child pornography in the photos section of a Yahoo! account.
"The Maine State Police Computer Crimes Unit undertook an investigation and ultimately identified the owner of the account to be Barbara Cameron, the defendant's wife. Further investigation confirmed that Mr. Cameron was an assistant attorney general for the state of Maine, and that some of the pornography involved children as young as 4 to 6 years old engaging in sexual conduct....On December 21, 2007, the state executed a search warrant and seized four computers. When the computers were examined, there was evidence of Internet chat between two users about sex with children, images of child pornography and related topics....In one of those conversations, the person identified himself as a married 45-year-old man with a daughter, a description that fits Mr. Cameron."