Talking in the US context. The Miranda warning says anything you say can be used against you in a court of law but never to support your case. So as I see it talking to the cops makes no sense irrespective of whether you have committed a crime or not. So why do suspects sit for hours long interviews with the cops?
Edit:- “… never to support your case”. As some commenters pointed out the Miranda warning doesn’t say that. That’s right, I meant it in an implicit way. I just saw a defense attorney’s YT video who said that’s the hidden part.
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You should also consider the survivorship bias. The ones who tend to end up being arrested and interrogated are more likely the ones who aren’t aware that they can stop talking and call a lawyer. The ones who have the foresight and knowledge of the system usually aren’t the ones being arrested.
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