The more underhand tactics all get a pass though. Outright lying to the suspect(s). Other dirty tricks to get, and keep, the suspect(s) talking without access to legal representation. Prison snitches who somehow obtain a perfect confession with details that only the perpetrator would know… but also the police who totally wouldn’t coach the sort of person who’d do anything for less time behind bars.

And there’s often the implication that suspects who jump the hoops and get legal representation, otherwise keeping their mouths shut are uncooperative scum who are probably guilty and should be thought of poorly, when it’s a perfectly valid way to act even if you’re completely innocent. In fact, it’s the best way to act because you have no idea if the police are corrupt and/or lazy and are looking to pin the crime on someone, anyone, and that might well be you.