My guess: because he asked them to do so.
Why? Because it contained information that proved that Shinoff filed a false (or at least highly misleading) document as an exhibit for his declaration in a defamation suit. It was an important declaration. The judge relied on it to make her decision in a summary judgment.
In some cases Stutz doesn't seem to evaluate the law and the facts of the case, just whether their public entity client can get away with wrongdoing.
