So what happens in a jury system? Watch 12 Angry Men. Its a great movie to observe psychological models at work.
12 not so angry men (or women) who are honorable and have no connection with the case are required to sit in a room and listen. They are not allowed to talk – the talking is done by the lawyers and the witnesses and the judge. The jury members are required to keep them minds open and their mouths shut and hear the proceedings of the case including the arguments brought forward by both sides. They are required to NOT DECIDE AT THIS POINT. No jumping to conclusions allowed. No first conclusion bias here. No confirmation bias either.
Then they are asked to go sit in a room and NOT COME OUT until they have a UNANIMOUS (or majority in some countries) decision. To arrive at the decision, they need to debate, discuss, look at different points of view, and only AFTER this has been done are they required to DECIDE.
This is a WONDERFUL system of decision making because it forces objectivity, removes first conclusion bias, and confirmation bias – IF IT WORKS. In reality, psychologically astute lawyers will use all the tricks in the trade to manipulate jury members – but at least in theory the jury system is a fabulous system – and strongly advice you to adopt it in your own decision making process.
Remember this: The decision to not decide now on a matter is also a decision. There is wisdom in the Chinese proverb: “My indecision is final.”