New Jersey's wiretapping law is a "one-party consent" law. New Jersey makes it a crime to intercept or record an in-person or telephone conversation unless one party to the conversation consents. N.J. Stat. §§ 2A:156A-3, -4. Thus, if you operate in New Jersey, you may record a conversation or phone call if you are a party to the conversation or you get permission from one party to the conversation in advance. That said, if you intend to record conversations involving people located in more than one state, you should play it safe and get the consent of all parties.
It may be admissible in court so long as it is introduced properly.
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