Wire-tap

Subordinate to this argument is the violation of a variety of state and federal statutes, including Section 605 of the Communications Act of 1934, which expressly forbids the use of a wire-tap.

Source: wiktionary

Housed in the old Air Ministry building, it was said that even Himmler had to obtain Goering's permission to put a wire-tap on someone, and I strongly suspected that it was through this particular facility that Goering continued to add to the 'reservoir of intelligence' that Diels had left to his erstwhile master.

Source: wiktionary

A police wire-tap that enmeshed some of Turkey's most powerful in 2012 led to cumulative sentences totalling more than 42 years being handed down to 93 officials, players and agents for match-fixing, bribery, extortion and membership of a crime syndicate.

Source: wiktionary

In view of that, I think I will agree with Mr. Shimon that it may be well for this committee to look into the New York law — and he made it in executive session — which requires a police officer who wants to get permission to wire-tap to go to a judge, or in this case you could make it a Commissioner, or the Board of Commissioners or the presideing senior judge of the United States district court, and let him determine whether or not under the circumstances it is of sufficient importance, the gravity of the situation as they know it then, not when it develops later 2 or 3 years, and let him decide whether it should be issued or not.

Source: wiktionary