Supplementary NDPS complaint and Section 42 safeguards require strict compliance; procedural lapses can vitiate conviction.

In complaint-based NDPS prosecutions, a supplementary complaint may be entertained only after further investigation and with the Court's express leave; without such permission, the complaint has no lawful foundation. The text also emphasises strict compliance with Section 42 safeguards governing recording, communication and search, and notes that inconsistencies in documents, seal impressions, witness association and seizure evidence can create reasonable doubt. Where these defects remain unexplained, the prosecution fails to prove guilt beyond reasonable doubt and the conviction cannot be sustained.

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Issues: (i) Whether a supplementary complaint in a complaint case under the NDPS Act could be filed only with the express leave of the Court after further investigation, and whether the conviction based on such complaint was sustainable. (ii) Whether the prosecution had proved compliance with the mandatory safeguards under Section 42 of the NDPS Act and whether the remaining evidence was sufficient to sustain the conviction.

Issue (i): Whether a supplementary complaint in a complaint case under the NDPS Act could be filed only with the express leave of the Court after further investigation, and whether the conviction based on such complaint was sustainable.

Analysis: The Code of Criminal Procedure applies to NDPS proceedings before the Special Court by virtue of Sections 36C and 51 of the NDPS Act. The Court examined conflicting authorities on whether a second or supplementary complaint can be entertained in a complaint case. It accepted the view that, although there is no specific provision expressly authorising a supplementary complaint, such a complaint is permissible where further investigation is undertaken and the Court grants express leave. In the present case, however, no such permission had been obtained before filing the supplementary complaint against the appellant.

Conclusion: The supplementary complaint was not maintainable on the facts of the case, and the conviction founded upon it could not stand.

Issue (ii): Whether the prosecution had proved compliance with the mandatory safeguards under Section 42 of the NDPS Act and whether the remaining evidence was sufficient to sustain the conviction.

Analysis: The Court found serious infirmities in the prosecution version, including inconsistencies in the dates and places of preparation of documents, unexplained discrepancies in seal impressions, absence of reliable proof of timely recording and communication of the secret information, and failure to record reasons for conducting the search in the manner required by the proviso to Section 42(1) and by Section 42(2). It also noted that independent witnesses were available but were not joined, that the call-detail evidence and seizure record did not consistently support the prosecution case, and that only samples were tested rather than the entire bulk. These defects created substantial doubt about the integrity of the search, seizure and prosecution story.

Conclusion: The prosecution failed to prove the charge beyond reasonable doubt and the conviction was liable to be set aside.

Final Conclusion: The appeals succeeded, the convictions and sentences were annulled, and the appellants were acquitted and ordered to be released if not required in any other case.

Ratio Decidendi: In a complaint-based NDPS prosecution, a supplementary complaint may be proceeded with only when further investigation is undertaken and the Court grants leave, and strict compliance with the mandatory safeguards governing search and seizure is required; breach of those safeguards and absence of a lawful foundation for the supplementary complaint vitiate the conviction.

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