But the problem with that is too much room for human error and biases, that’s the reason why we don’t already emoloy your idea which is not a new proposed idea.
Capital punishment has always been popular throughout our history, we are just far more evolved now to understand why capital punishment with impunity can go wrong…
Your idea also puts a ton of faith in the public/elected officials and governments not being corrupt and not using their power for personal gains… we know that is not a reality we can relay on and more often than not, people of power WILL abuse it… your proposal has so many ways to be abused…