Double Jeopardy
NYC criminal defense attorney here. All inmate phone calls at the city jail (Rikers Island) are recorded. I remind my clients on a regular basis that somebody is listening to all their calls, and that they should never discuss the case or call anyone related to the case from jail.
I had a client who was charged with stalking and harassing an ex girlfriend. The thing about these charges was that this was the first and last time I had seen a legitimate case of double jeopardy (defendant being charged with the same crime twice).
The defendant had already pled guilty and done a small amount of jail time for the same incidents. I walked into court on our first appearance supremely confident that my client would be walking out of court a free man.
To my surprise there was a second indictment charging new crimes. My genius client had called his ex-girlfriend and the DA had recordings of him threatening to beat her if she came to court to testify against him. We took a plea right there and he served 3 years for witness tampering and contempt.
If my client had only listened to my advice and let me do my job he would have gone home three years earlier than he did.