Public Prosecutor must conduct prosecutions in every Court of Session trial under the statute, ensuring centralized prosecutorial conduct.

Section 248 establishes that the prosecution in every trial before a Court of Session must be conducted by a Public Prosecutor. The provision creates a mandatory prosecutorial arrangement for sessions trials, requiring that the State's case at that forum be led by an officially designated Public Prosecutor rather than private parties or other officials, and operates as a procedural and organizational requirement governing who is authorized to present and manage the prosecution in a Court of Session.

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