The accused, Dennis James Edgar, was charged with possession of fentanyl for the purpose of trafficking while serving a penitentiary term.
The fentanyl was found concealed in a blanket in a dry cell where he was confined.
The Crown relied on prison procedures and expert testimony regarding drug distribution in institutions.
The defence argued that crucial evidence, including CCTV footage and testimony from officers responsible for dry cell preparation, was missing, creating reasonable doubt about the accused's knowledge of the fentanyl.
The court found that the Crown failed to prove beyond a reasonable doubt that the accused had actual knowledge of the fentanyl, leading to the dismissal of the charge.