in Parkash Singh Badal and Another v. State of Crl. Appeal @ SLP (Crl.) No. 1074 of 2017 & Ors. Page 16 of 38Punjab and Others16; Narendra Kumar Amin v. Central Bureau of Investigation and Others17; and Central Bureau of Investigation v. R.S. Pai and Another18. 22. Recently a three Judge Bench of this Court in Zakia Ahsan Jafri v. State of Gujarat and Another19, has observed: “11. This Court in Dayal Singh noted that the investigating officer is obliged to act as per the Police Manual and known canons of practice while being diligent, truthful and fair in his/her approach and investigation. It has been noted in the reported decision that an investigating officer is completely responsible and answerable for the manner and methodology adopted in completing his investigation. Concededly, upon completion of investigation, the investigating officer is obliged to submit report setting out prescribed details, to the Magistrate empowered to take cognizance of the offence referred to therein,