Implants an insidious seed: the idea that cops should do whatever it takes to get confessions; trickery, coercion, etc. If these cases would hold up in a real court, they shouldn't. Shows like these are part of a much bigger problem that creates a completely broken justice system. The acting and writing is not the problem. It is very good. The problem is that it creates to a deeper and more malignant source of oppression.