I think it should be public to be a general check the public can engage with against judges, cops, and court participants.

Consider cases like Cash for Kids. It potentially could have been caught a lot quicker if we had the data publicly available to see "How does this judge usually rule". Today, proving that a judge has is bias is pretty hard, but imagine if we could see "This judge always denies motions when the claimant or their lawyers are Irish".

Or consider dirty cops. Imagine being able to search all the drug arrests of a cop and finding out "Hmm, this cop is finding meth on everyone he pulls over". That's a valuable tool for the next victim of the cop that gets accused of meth possession. As it currently stands, we basically rely on the cop not forgetting to cover their cameras.

Having more data available makes it easier systematic analysis and mining a whole lot easier.