Electronic Surveillance is more widely known as Wire tapping.
As stated by National Conference of State Legislatures.
Electronic Surveillance involves the traditional laws on wiretapping–any interception of a telephone transmission by accessing the telephone signal itself–and eavesdropping–listening in on conversations without the consent of the parties.
Electronic surveillance is a very useful tool in stopping a potential crime or getting proof and further information on a crime that already happened.

Law enforcement must get a warrant from a judge in order to do electronic surveillance. The Federal government on the other hand does not need a warrant and eavesdrops on all conversations within the U.S. they deem necessary.
With electronic surveillance a qualified investigator will provide you the answers you are looking to find. To find a qualified private investigator in your area, search our network. Still can’t find what your are looking for? Call us at 888-888-9011.