“Each Wiretap Report uses tables, text, and charts to report information provided by federal and state officials on orders authorizing or approving interceptions of wire, oral, or electronic communications for the calendar year ending December 31…This report covers intercepts concluded between January 1, 2012, and December 31, 2012, and provides supplementary information on arrests and convictions resulting from intercepts concluded in prior years.

• The reports present data on types of offenses under investigation, nature and locations of intercept devices, costs and durations of intercepts, and intercept extensions granted.
• They do not include names, addresses, or phone numbers of subjects under surveillance.
• Publications dating back to 1997 are available in the archive.
• This report does not include data on interceptions regulated by the Foreign Intelligence Surveillance Act of 1978.