173(8) CrPC | Constitutional Courts Can Direct De Novo Investigation Even After Trial Commences To Prevent Miscarriage Of Justice: Supreme Court

"The power to order fresh, de novo or reinvestigation being vested with the constitutional courts, the commencement of a trial and examination of some witnesses cannot be an absolute impediment for exercising the said constitutional power which is meant to ensure a fair and just investigation." Supreme Court of India, in a significant ruling dated September 21, 2026, held that constitutional courts possess the plenary power to direct a de novo investigation into a criminal case, even after the trial has commenced, provided the circumstances are exceptional and such intervention is necessary to prevent a miscarriage of justice.

A bench of Justice Sanjay Kumar and Justice Sanjeev Sachdeva emphasized that a fair and impartial investigation is a constitutional obligation of the State under Article 21, and the court must intervene when it perceives that the investigation has been tainted, biased, or conducted in a manner to help culprits escape the clutches of the law.

Investigation Must Be Fair And Transparent

The court observed that the investigation in the present case was grossly deficient and failed to meet the standards of "fidelity, accuracy and sincerity." The bench noted that the investigating agencies—ranging from the local police to the CID and the CBI—had failed to secure critical evidence or examine material witnesses, which shocked the judicial conscience.

Court Must Not Be A Silent Spectator

The judges highlighted that while the power to order further or fresh investigation must be exercised with self-imposed restraint, this restraint cannot lead to a complete denial of justice. The court held that if the veil of investigation is lifted and it becomes evident that the authorities have been shielding the real culprits, the court has a bounden duty to act with an "iron hand" to preserve the rule of law.

Failure To Collect Evidence During Golden Hour

The bench specifically faulted the investigating authorities for failing to preserve and collect forensic evidence during the "golden hour," noting that such lapses were not merely negligent but potentially calculated to protect the real perpetrators. The court debunked the High Court’s reliance on the argument that no useful purpose would be served by further investigation due to the passage of time.

DNA Evidence And Availability Of Witnesses

The Supreme Court pointed out that recent orders passed by the court itself proved that critical witnesses could still be located and protected, thereby undermining the contention that the investigation had reached a dead end. Furthermore, the court noted that DNA samples, particularly from the victim's garments, remained a viable source for comparison if fresh investigation is initiated.

Constitutionality Of Reinvestigation

The court reiterated that the right to a fair trial is inextricably linked to the right to a fair investigation. Relying on precedents like Neetu Kumar Nagaich v. State of Rajasthan and Babubhai v. State of Gujarat, the bench affirmed that Section 173(8) of the CrPC does not limit the constitutional court's inherent jurisdiction to order an entirely fresh probe in cases where the integrity of the original investigation is fundamentally compromised.

Acquitted Accused Protected By Article 20(2)

While ordering a de novo investigation, the court clarified that this order would not affect the rights of the accused, Santhosh Rao, who had already been acquitted by the Sessions Court. The bench observed that he is entitled to the protection against double jeopardy under Article 20(2) of the Constitution of India and Section 300 of the CrPC, and thus, he shall not be subjected to any further investigation or prosecution in this matter.

SIT To Conduct Fresh Probe

The Supreme Court set aside the impugned order of the High Court and directed the State of Karnataka to constitute a Special Investigation Team (SIT) to conduct a de novo investigation into the case. The court mandated that the SIT must be headed by a senior police officer and, crucially, no officer associated with the earlier investigations by the local police, CID, or CBI shall be part of this new team to ensure impartiality.

Three-Month Deadline Set

The court directed that the fresh investigation be concluded within a period of three months. It further clarified that its observations on the conduct of the investigation were not intended to express any final opinion on the guilt or innocence of any specific individuals, including those suspected by the family of the victim, leaving the outcome to be determined by the new investigation in accordance with the law.

Date of Decision: 21 September 2026