Originally Posted by antarius

Wrong buddy.

For civilians both parties have to agree to the recording for it to be a legal recording.

Yes you can do it for your own personal use without notifying the other, but if you use for humor purposes, to slander the person, for financial or emotional gain, etc, it can all be turned around on you and deemed illegal.

If a police officer is authoring the recording then only one party has to agree to the recording; Hence why I can record my conversations with suspects or contacts without them knowing (while working) -- because I'm "one of the parties."