"Government prosecutor....tell me who has confessed sexual abuse to you....Priest responds: first,people dont identify themselves to me by name.That is by design.Second,I cant see their faces.That,too,is by design.Third,many people...out of shame or embarrassment...disguise their voices.So even if I *wanted* to help you I couldnt."
Or should the priest take the initiative and tip off the police>
Yeah, ring up 911 and say: "Somebody --- I don't know who--- said he sexually molested children, but I don't know exactly what he did, or to whom, or where, or how long ago."
And that benefits whom?
Or, lastly, just put a wire and a videocam in every Confessional. At which point, nobody goes to Confession.
That solves the problem! --- but only if your problem is with the existence of Catholicism.