I am curious (a serious question) what better system you have in mind to replace juries.
I am curious (a serious question) what better system you have in mind to replace juries.
This feels to me like it gets most of the benefit of both a jury and of professional judges. It avoids a lot of the issue of whether or not the lay judges understand the jury instructions and the legal aspects they're asked to judge on, but also ensures the prosecutor does need to convince both the lay judges and the professional judges for a conviction.
It's not really that they are "free to acquit" either as much as that there is no mechanism for preventing it.
The issue is controversial enough that the several circuits have made it clear courts can present jury instructions designed to minimize it and/or prevent the jury from being made aware of the ability.
And this ability has also been extensively abused, e.g. for racist purposes. While it has also been used to attack unjust laws, I'm not convinced it is worth the risks.
In the US, if you do not want a jury trial, you are free (and encouraged) to do so and settle for a bench trial, where everything is decided by a judge. I think that gives you the best of both worlds as a defendant.
I'm not saying you're wrong, but here in the US we can be pretty certain that 12 random people are not corrupt. You just have to trust that judges aren't corrupt.
I have dabbled in some areas of law that are 'bubbles' with specialized lawyers and no juries (family law, bankruptcy, landlord-tenant). It doesn't take much to disrupt them with conventional good lawyering because most people in those practices areas, judges included, are in a rut.
Criminal law has some similar problems mostly at the low level. But it is usually the prosecutors and the defense attorneys colluding to quickly pass cases through the system. The last thing most judges, prosecutors, and defense attorneys want is a jury trial because then they would have to do their job.
From the outside I had the impression successful defense attorneys would try to convince the jury by confusing them, which seems quite easy because the jury usually isn't educated in law.
Also, even though good research about jury deliberation is limited because they are conducted in secret, I recall (from memory) that research shows juries are pretty good at detecting when someone is trying to deceive them.
Further, in trials, the opposing party gets a say in the matter too. If one side says something deceptive or deliberately confusing, competent lawyers for the other side will point this out and attempt to correct the record, possibly turning the jury and the judge against the deceptive lawyer.