This is where U.S. law sort of departs from reality. We use what can best be described as a shotgun approach to privacy. It's full of holes.
It is mostly based on the phrase "a reasonable expectation of privacy". For instance, if you're at home on the phone talking in confidence to a best friend on the phone, you have a reasonable expectation of privacy. You feel more secure in that type of conversation and so would say things you wouldn't otherwise say.
On a college campus in public, you have no expectation of privacy.
So regardless of what the written law is, it can change dramatically based on the circumstances. Officers have had tapes thrown out because they were recorded in a public bathroom based on the idea that it is a bathroom and one has a reasonable expectation of privacy while they're taking a dump.
It's a real mess as to what is and isn't legal depending on the circumstances. In @Capitalism_is_Theft case, he works at a public university in the public domain. He can record his comings and goings at will. Whoever happens to come into and out of those recordings is incidental.
However, if there were a meeting to be called between he and a supervisor in the supervisors office, that MIGHT be different. On the one hand, state law says he has the right to record because he consented to the recording. On the other, the supervisor could argue that in his office, behind a closed door, in a private one-on-one meeting, he had a reasonable expectation of privacy.
It would be up to the judge/jury to decide that one.
Already, a few years ago, I had a meeting called between me and not only a supervisor, but the entire department/division head, and a separate meeting with one of the top HR ladies before that meeting all on the same morning.
The meeting with her, in HR, she pulled out a I phone sat it down in a chair pointed it right at me, never said a word, never warned, never spoke up. But, I was ready, I was in record mode before I walked in. They got the same in return. No one know to this day I have it.
The next meeting, with him, ( this guy had a massive temper problem, a Trump type, he was our division department director ) known for losing his cool, being a smart ass an intimidator, a bully, had complaints filed on him by the NAACP, got so mad he broke a window glass out of his office door after meeting with an employee. Did other things too.
Anyway, I recorded that meeting too.
And, there were antics all right.
Here’s another thing, the woman down in HR, she’s usually the one who wants people to write letters or statements if an event occurs, and have it sent to her. I have no doubt that’s to protect their ass legally, and build a case against you for a later date if need be etc
Also, on these meetings, you can refuse any meeting they tell you that you have to have with them. You tell them, “Yes, as soon as I have a person who can set in with me ( 3rd person ).” You have a right to do that. They don’t want you to know that. A meeting I went to one time ( the one I recorded ) I couldn’t het the campus workers Union to get off their duffs !! To do what they were supposed to do! I did speak to their attorney via phone in Atlanta, who explained, they were supposed to have been in there with you.
Well, we have a university president who rubs shoulders with Trump, that should tell you something, about the structure of our chain of command.