William J. Brennan, Jr., Lopez v. United States (373 U.S. 427…
“ As a matter of fact, more wiretapping by police is done in gambling cases than in any other kind of case. In gambling and in vice matters generally, there is steady pressure on the plainclothesmen to maintain a certain arrest record. Continuous wiretap surveillance, without court order, enables plainclothesmen to maintain this record.' Dash, at 66. The same principles apply to electronic surveillance generally.↑ Senator Hennings has termed electronic eavesdropping more insidious and more prevalent than wiretapping. ”
