TLIK: The mesira issue is live and viable and has not been put to rest. It is a serious concern and consideration in all cases.
And mandated reporters are forbidden to report if it is mesira. And in some real cases it applies.
(“mesora” was a spell-checker [inaccurate] correction. It obviously should have read mesira. And it isn’t I who sees mesira as evil; the RBS”O declared so in His halachos.))
What I stated here and above is halachicly accurate and applicable.