The prior in favor of “accurate information helps people come to more accurate beliefs” just seems so much stronger here than the relatively vague and abstract arguments you are providing
A simple model, which is roughly what I interpret legal experts to mean when they say that the US justice system is intentionally designed as adversarial, is something like: the probability that a judge finds you guilty (pj) is the product of the true probability that you are guilty (pt), the bias on evidence introduced by the prosecutor (bp), and the bias on evidence introduced by the defender (bd):[1]
pj=ptbpbd
We observe that pj=pt↔bp=b−1d i.e. the optimal truth finding strategy is when both sides are equally biased in their own favor. And importantly to your point, one side being unbiased results in the judge making a worse decision (assuming the other side is biased).
Furthermore, the equilibrium of this game is when sides are maximally biased in their own favor (since otherwise the more biased side would disproportionately win). Knowing this, the US legal system encourages both sides to be maximally biased, since this results in the most accurate judgments.
I would be interested to hear from others if this seems accurate, as it’s not something I know a lot about.
A simple model, which is roughly what I interpret legal experts to mean when they say that the US justice system is intentionally designed as adversarial, is something like: the probability that a judge finds you guilty (pj) is the product of the true probability that you are guilty (pt), the bias on evidence introduced by the prosecutor (bp), and the bias on evidence introduced by the defender (bd):[1]
pj=ptbpbd
We observe that pj=pt↔bp=b−1d i.e. the optimal truth finding strategy is when both sides are equally biased in their own favor. And importantly to your point, one side being unbiased results in the judge making a worse decision (assuming the other side is biased).
Furthermore, the equilibrium of this game is when sides are maximally biased in their own favor (since otherwise the more biased side would disproportionately win). Knowing this, the US legal system encourages both sides to be maximally biased, since this results in the most accurate judgments.
I would be interested to hear from others if this seems accurate, as it’s not something I know a lot about.
After writing this I realized these should be odds ratios, not probabilities, but hopefully you get the point.