Recording phone conversations is not illegal ( a little free law for ya )
Here is a little law for free and I won't charge u.
1. Typically this law is state by state however federal law trumps state law. With that in mind, the law states that phone tapping is illegal if your recording two other people talking ( with out a warrant) however; if u record a phone conversation with u and another person, or a hidden camera with u involved in the conversation, this is legal.
So to make it simple, without a search warrant, u and record any conversation as long as u are talking to the person. The other person "does NOT" need to know per law that they are being recorded. If u record two people talking with out u as well talking, it's illegal.
So all the rumors "cops have to tell u if your being recorded when they are talking to u and secretly recording". Sorry, they don't.
But what are the stipulations of getting around catching your wife/husband talking to another person??? Well there are a few. The easiest way is get a lawyer and file for a legal separation and request a search warrant due to an unrelated event. Or, "if he or she is suspected of doing anything illegal, law enf could get a sw to listen in if the suspected crime is important enouph".
Or possibly doing it under good faith so ur "daughter or son" isn't making poor decisions ect.
Keep in mind that laws are there for a reason... To protect these things we called ammendments!!! But they are intended to keep people safe, and that's why there are clauses to each. Freedom of speech, yep first amendment but there are stipulations that regulate that. My point is, if your trying to listen in to your significant others conversation, evaluate if your time is worth listening into he or she say what u already know. Sixth sence is not a phenomenon, it's a sence we aquir.
Know ur state laws that are specific to phone tapping. I'm referring to the phone tapping laws, however again, recording u and another person talking with out them knowing is not illegal... It doesn't fall under any phone tapping law.
My resources are my career. Good luck