Advocate-Client Privilege Does Not Grant Immunity From Investigation Into Personal Involvement In Alleged Offence: Delhi High Court

"The protection accorded to such confidential communications remains an important safeguard in the administration of justice. The conclusion reached in the present case is confined to the peculiar facts and circumstances before this Court, where the Respondents have placed material indicating that the Petitioner’s own role and conduct, and not merely the confidential communications between an Advocate and his client, form part of the subject matter of investigation." Delhi High Court, in a significant ruling dated 18 September 2026, held that the professional privilege under Section 132 of the Bharatiya Sakshya Adhiniyam, 2023 (BSA), cannot be invoked by an advocate to shield themselves from investigation when there is prima facie material suggesting their personal involvement in the alleged illegalities.

A bench of Justice Anil Kshetarpal and Justice Shail Jain observed that such privilege does not grant an absolute immunity from investigation into an advocate's own conduct, provided the investigating agency demonstrates a basis for the probe beyond the mere representative role of a lawyer.

The petitioner, an advocate, challenged the search and seizure operations conducted by the CGST Department on 25 July 2025 at his law firm’s premises, which resulted in the seizure of his CPU and various client documents. The petitioner contended that the search was unauthorized and violated the sanctity of advocate-client privilege, particularly regarding files related to his clients, including M/s Martkarma Technology Pvt. Ltd. (MTPL). The Revenue authorities argued that their investigation revealed the petitioner was not merely acting as counsel but was actively involved in the operations and financial benefits of the gaming company under scrutiny.

The court addressed whether the search and seizure were rendered illegal by the status of the premises as a law office and the petitioner’s status as an advocate. Further, it examined whether the production of investigative material in a sealed cover was permissible, whether the absence of a Show Cause Notice (SCN) invalidated the search, and whether the respondent’s reliance on evidence suggesting the petitioner's direct involvement in the entity's affairs negated the claim of professional privilege.

Privilege is not a personal shield for advocates

The court underscored that the privilege under Section 132 of the BSA is primarily for the protection of the client’s confidentiality. It is not an absolute personal immunity for the lawyer against criminal or statutory investigation. Where an advocate steps into the role of an active participant in a business or an alleged crime, they cannot hide behind their professional capacity to prevent the gathering of evidence.

Investigation is not static

The court rejected the argument that the Revenue had changed its stance. It observed that investigations are dynamic processes. The emergence of new material linking additional persons—including the petitioner—to the core transactions does not constitute a contradiction in the investigation, but rather a progression of the inquiry based on collected evidence.

No violation of statutory authorization

The court found that the reasons recorded by the competent authority under Section 67(2) of the CGST Act were sufficient to justify the search. The fact that an advocate's cabin was located within the searched premises did not render the entire authorization void, provided the statutory conditions for search were met.

Protection of third-party client data

The court emphasized that while the petitioner's involvement was under probe, it remained vital to protect the confidentiality of innocent third-party clients whose data was stored in the seized CPU. Consequently, the court maintained strict safeguards, including the presence of court-appointed IT officials, to ensure that the investigation does not access unrelated privileged information.

Non-disclosure of investigative material

On the issue of sealed covers, the court held that investigative records are not ordinarily available to an accused during the investigation phase. Citing the principles regarding police diaries, the court noted that mandatory disclosure at this stage would impede the ongoing probe. The judgment of the Supreme Court in Madhyamam Broadcasting Limited was distinguished as being inapplicable to the context of ongoing criminal investigation records.

The court dismissed the writ petition, upholding the legality of the search and seizure. It clarified that while the order permits the investigation to proceed, it does not establish a blanket rule against advocate-client privilege. The ruling is restricted to the present matter where prima facie material indicates the petitioner's personal participation in the affairs being investigated. The court further denied the request for a stay on the operation of the judgment.

Date of Decision: 18 September 2026