Here is an interesting case from the First, United States v. Cameron, decided 14 November 2012. The issue is confrontation and the admission of various internet provider records. I think this case helpful in litigating the paper that the prosecution seeks to use in CP cases.
We thus presume that Cameron’s challenge is to the following categories of evidence: (1) the Yahoo! Account Management Tool and Login Tracker data — this data was attached to the CP Reports and was also produced in response to search warrants; (2) electronic receipts of Yahoo’s CP Reports to NCMEC — these receipts were produced by Yahoo! in response to search warrants; (3) NCMEC’s CyberTipline Reports to ICAC; and (4) the Google Hello Connection Logs.