They're only allowed to deal with that part of the trial which the law allocates them, and they usually know less about the results of their work after it's left them than the defence does, even though the defence will usually stay in contact with the accused until the trial is nearly at its end, so that the court officials can learn many useful things from the defence.
Legeak mugatutako prozesu zatian bakarrik ari zitezkeen, eta beren lanaren jarraipen edo emaitzari buruz gehienetan gutxiago zekiten defentsak baino, azken hau jeneralean akusatuarekin harremanetan egoten baitzen prozesu amaiera arte.