Does Making a Murderer fall prey to the very overconfidence it claims to critique?
“Making a Murderer” raises serious and credible allegations of police and prosecutorial misconduct in the trials of Steven Avery and Brendan Dassey. It also implies that that misconduct was malicious. That could be true; vindictive prosecutions have happened in our justice system before and they will happen again. But the vast majority of misconduct by law enforcement is motivated not by spite but by the belief that the end justifies the means—that it is fine to play fast and loose with the facts if doing so will put a dangerous criminal behind bars.
That same reasoning, with the opposite aims, seems to govern “Making a Murderer.” But while people nearly always think that they are on the side of the angels, what finally matters is that they act that way. The point of being scrupulous about your means is to help insure accurate ends, whether you are trying to convict a man or exonerate him. Ricciardi and Demos instead stack the deck to support their case for Avery, and, as a result, wind up mirroring the entity that they are trying to discredit. (Source)