So what are people's opinions of "professional" juries?
I did my stint a few years ago and wouldn't mind about doing it again, but then I find both the law and 'factual interpretation' interesting subjects. Although I did take away one big question mark.
My experience was that juries quickly polarised into three groups; those who instantly formed a verdict heavily influenced by prejudices or speculative character judgments (one way of the other), those who wanted to talk about the facts and arguments in a detached manner, and those who just weren't interested or engaged enough to form an opinion themselves, and just swayed between whichever group was 'winning' the argument,
Although I get the principle of "12 equal peers", there is a flaw in the system in that those 12 peers are not all guaranteed to enter the deliberations are truly equal. If you had a strong contingent of group 3, and a sufficiently forceful contingent of group 1, then the verdict wouldn't be based on fact, but upon (potentially false) preconceptions backed by a majority who weren't inclined to counterbalance it.
I would be up for an opt-in system - perhaps in return for bigger recompense for time rendered - where the people interested in performing the duty properly and diligently were called, but those more worried about their own lives to spend time considering their decision and the impact it could have on multiple other lives could be left in their own self-absorbed bubbles. Just my thoughts like.