"The expenditures noted reflect the cost of installing intercept devices and monitoring communications for the 2,034 authorizations for which reports included cost data. The average cost of intercept devices in 2011 was $49,629, down 1 percent from the average cost in 2010. For federal wiretaps for which expenses were reported in 2011, the average cost was $71,748, a 13 percent increase from 2010. The cost of a state wiretap ranged from a low of $200 in Hudson County, New Jersey, to a high of $2,885,712 for a narcotics investigation conducted by the New York Organized Crime Task Force."

Source

Administrative Office of the United States Courts, 2011 Wiretap Report (Washington, DC: USGPO, June 2012), p. 9.
http://www.uscourts.gov/uscou…