I don't know. Single party consent is great if you want proof that someone is threatening you (or something similar) or even just to have a personal record of a

I don't know. Single party consent is great if you want proof that someone is threatening you (or something similar) or even just to have a personal record of a conversation, but I don't know about single party consent to give a copy of the recording to a non-law third party. (There are still ethical issues with providing a copy to authorities when the incriminating information doesn't affect you, but that's beside the point.) For one, it's a huge breach of trust, but it could be very damaging for the non-consenting party. For instance, secretly recording a partners voice during sex and distributing that online would be pretty similar to revenge porn but in audio form. I don't think anybody would be "all for" that Now this piqued my interest, so I took a look at Wikipedia[1]. Interestingly enough, England seems to allow recording phone calls without notifying the other party as long as it is only for personal use and not made available to a third party, but US Federal law does not seem to have such a stipulation, thus presumably allowing people in one-party consent states to post recordings of phone calls on social media without the other party's consent (unless the state forbids that. It's a bit hard to find concrete information on this), which is pretty troublesome I think. However that is only for telephone recordings and not for private conversations, so maybe the laws are a bit more sensible in that case. 1: https://en.wikipedia.org/wiki/Telephone_recording_laws https://en.wikipedia.org/wiki/Telephone_recording_laws