Criminal investigation

High Court cannot hear and adjudicate petition under Art. 199 of the Constitution like an appeal and replace its findings with that of the Court of first instance or the Court hearing the revision petition

All High Court has to do is to determine whether there is any error of law or of jurisdiction

No interference in investigation can be made by any Court except in certain circumstances.

High Court did not entertain Constitutional petitions challenging insertion or deletion of sections of P.P.C. or offence(s) by the Investigating Officer and could not allow requests for judicial review of the opinion/direction of the public prosecutor given to the police for such amendment, on the ground that error, if any, did not prejudice either party and could be rectified by Trial Court at time of framing of charge.

Arrest of accused, during investigation, is not incumbent upon the police officer, if otherwise investigation can be concluded

Police officer is not required to deprive a person of his liberty.

Rule of estoppel has nothing to do with criminal investigation or proceedings.

Plaintiff assailed notices issued by Federal Investigation Agency (FIA) to Habib Bank Limited in furtherance of inquiry that certain immovable properties of someone had been fraudulently offered by two persons to various banks for obtaining loans against said properties in favour of plaintiff's company

Validity

Defendants were officers of FIA established under Federal Investigation Agency Act, 1974 and were fully competent to inquire into fraud committed by different persons in obtaining loans from banking institutions

One of the defendants was posted in commercial banks' circle and it was within the purview of his duty to inquire into and investigate complaint registered, numbered and marked to him in terms of S.5 of Federal Investigation Agency Act, 1974

Remedy was quashment, if made out and not simple declaration and decree prohibiting public functionaries from performing their duties within the four corners of law

Suit was dismissed in circumstances.