I think the program shows just how the investigators are only on a mission to solve the crime even if the person is innocent. It makes me wonder how many innocent people are in jail. If they have no forensic evidence, maybe they should listen and not bully people.
It also seems to me that if you ask for a lawyer, which is your right, you are immediately arrested.
People await trial in jail for years awaiting trial. What is with that. If they are innocent, their lives are ruined.