The problem is false confessions. People have even confessed to be a witch and get burned, to stop torture.
Just pretend your kid was kidnapped and be dead in 24 hours if you don't find him. Now, say, you have an unrestricted access to someone that is accused of being the kidnapper. (By the way, he was accused by the former boyfriend of his daughter, because he didn’t like the relationship.) Now, you are lucky , and you get unrestricted access to a new suspect. (By the way, he is a moron the police incriminate because they must show some result to the press before the 11 news report.)
Just pretend your kid was kidnapped and be dead in 24 hours if you don't find him. Now, say, you have an unrestricted access to someone that is accused of being the kidnapper. (By the way, he was accused by the former boyfriend of his daughter, because he didn’t like the relationship.) Now, you are lucky , and you get unrestricted access to a new suspect. (By the way, he is a moron the police incriminate because they must show some result to the press before the 11 news report.)