"This is the annual report to Congress concerning intercepted wire, oral, or electronic communications required by Title III of the Omnibus Crime Control and Safe Streets Act of 1968, § 802, Pub. L. No. 90-351 and codified at 18 U.S.C. § 2519(3). Section 2519(3) requires the Administrative Office of the United States Courts (AO) to report the number of federal and state 'applications for orders authorizing or approving the interception of wire, oral, or electronic communications pursuant to this chapter and the number of orders and extensions granted or denied pursuant to this chapter during the preceding calendar year,' along with a summary and analysis of data required to be filed with the AO. This report does not include data on interceptions regulated by the Foreign Intelligence Surveillance Act of 1978, which the AO is not authorized to collect or report. […] The number of federal and state wiretaps reported in 2012 increased 24 percent from 2011. A total of 3,395 wiretaps were reported as authorized in 2012--1,354 authorized by federal judges and 2,041 by state judges. Compared to the applications approved during 2011, the number approved by federal judges increased 71 percent in 2012, and the number approved by state judges rose 5 percent. Two state wiretap applications were denied in 2012. In 24 states, a total of 120 separate local jurisdictions (including counties, cities, and judicial districts) reported wiretap applications for 2012. Applications in California, New York, and Nevada accounted for 69 percent of all applications approved by state judges. Seventy-seven federal jurisdictions submitted reports for 2012. The Northern District of Illinois authorized the most federal wiretaps (90), approximately 7 percent of total applications approved by federal judges."
United States Courts: http://www.uscourts.gov/