<h1>Advocates' client communications protected under Section 132 BSA; investigators cannot summon counsel without specified exception and written senior-officer approval</h1> The Supreme Court held that advocates' client communications attract privilege under Section 132 BSA and barred investigating officers and station house officers from summoning representing counsel in criminal probes unless a specified statutory exception applies and a superior officer not below Superintendent of Police records written satisfaction; the court set aside enforcement agency summons to two senior lawyers as infringing accused persons' rights. Summons issued under exceptions must specify grounds and are subject to judicial review under the BNSS. Client documents in counsel's possession are not privileged; production and digital-device examination must be conducted by the court with notice, hearings, and limited disclosure, and in-house counsel are excluded.