ISSUE:
Whether the investigation conducted by PW6 SI Satbir Singh, who was also the complainant, vitiated the trial?
Whether the search and seizure of the contraband complied with the requirements of Section 50 of the NDPS Act?
RULE:
An investigation is not vitiated merely because the complainant is also the investigating officer, unless actual bias or unfairness is demonstrated. A fair trial is determined by the overall conduct of the investigation and corroborative evidence.
Section 50 of the NDPS Act applies only to personal searches, not searches of containers or bags. If the accused is informed of their right to be searched before a Gazetted Officer or Magistrate and the search is conducted accordingly, there is no procedural violation.