What is Telephone Tapping / Wire Tapping?
The telephone or wire tap received its name because the monitoring connection was an actual electrical tap that was placed on the telephone line. Telephone tapping (or wire tapping / wiretapping) is the process of monitoring telephone and Internet conversations by a third party, often by covert means.
The Wiretap Act
The Wiretap Act (18 U.S. Code § 2511) is a federal law that protects privacy in communications with other persons. Under the Act, it is illegal to intentionally or purposefully intercept, disclose, or use the contents of any wire, oral, or electronic communication through the use of a “device.” There are civil and criminal penalties for violating the Act, but there are exceptions.
Intentional wiretapping refers to someone who deliberately intercepts a communication. Ignorance of the law cannot be used as a defense when it is violated.
Legal wiretapping by a government agency is also called “lawful interception”. Passive wiretapping monitors or records the conversation traffic, while active wiretapping alters or otherwise affects it.
List of One-Party Consent States
The following states require only one party to consent to recording a phone call or conversation to make the recording lawful.
District of Columbia
Michigan (see other statute)
Rhode Island (see case law)
South Carolina (no statute, see case law)
Wisconsin (see other statute)
List of Two-Party Consent States
The following states require the consent of every party to record a phone call or conversation to make the recording lawful.
- New Hampshire
What do Private Investigators Need to Know?
Private investigators need to know that wiretapping is illegal. Intentionally using wire tapping technology to intercept communications is in violation of the law and will carry consequences.
In cases where a private investigator is conducting counter-surveillance, it may be helpful to understand what a tap looks like and how it operates. Having an understanding of the technology used will help investigators uncover evidence of wire taps. Private investigators can use bug detectors to scan for such devices.
If you have any questions about wire tapping or phone tapping, please leave a message below. Mobile Phone Spy Software is a similar process used by parents and employers to monitor phones and computers that they own. For more legal definitions, visit our Glossary of Legal and Investigation Terms.