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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Just because you have the right to remain silent to not incriminate yourself doesn’t mean you have the intelligence to do so.
People under stressful situations will try to defend themselves in any way they can, and the most common way of humans doing that is to try and talk their way out of a situation, even if that means in the long term they’re just damning themselves.
Cops will also try every trick in the book to get people who are actually shutting up to talk and those methods are way more effective than people think they are.
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