The Ring and the Book continues, as the prosecuting attorney continues to argue for Pompilia’s innocence and against Guido’s murderous behavior. Just as with Guido’s defense attorney, some of his arguments are pretty dubious.
By the way, there’s a reading at Librivox now of Chesterton’s book on Robert Browning, which includes a very insightful essay about The Ring and the Book. (And even some words on why these prosecution and defense books are necessary to the poem.) You might want to check it out.