They suffer from the same plight as the majority of the public-side of our legal system. Too much work and not enough workers.
Judges, prosecutors, police, public defenders, etc...
They all have such a great case load that to examine every single document in detail would grind the entire machine nearly to a halt. The system needs an overhaul but it will not get one in the current political climate. The judicial branch is supposed to operate independently of the legislative and executive branches, but control lies with the controller of the budget.
Reminds me of an outrage a local newspaper reported on several years ago. A fire-rescue/EMT operation had a target response time of X, and had actually been responding in about half that time. This was seen as an indication that they were overstaffed or had too much money/equipment, and the proposal was to reduce the staffing/budget/equipment levels until the response time more closely tracked the target.