I know the answer to this. In 2014, the thing that keeps the police from saying anything else is a recording of the entire situation. Recording is standard practice in most interrogation situations. I say most, not all.
Story Time; I was interviewed for a crime I was tangentially related to (my employer at the time was robbed while I was on the clock, they were investigating any possible connections on my side). I kept repeating, "I would like to speak to my lawyer please." Once my lawyer came, he advised me to just be honest and tell them that there was no connection. I was just uncomfortable about talking to a cop behind closed doors and was 17.
When asked what we talked about, the cops response was something along the lines of, "nothing, the little asshole just kept saying lawyer. Check the tapes."
Story Time; I was interviewed for a crime I was tangentially related to (my employer at the time was robbed while I was on the clock, they were investigating any possible connections on my side). I kept repeating, "I would like to speak to my lawyer please." Once my lawyer came, he advised me to just be honest and tell them that there was no connection. I was just uncomfortable about talking to a cop behind closed doors and was 17.
When asked what we talked about, the cops response was something along the lines of, "nothing, the little asshole just kept saying lawyer. Check the tapes."
It was then that I realized the power of video.