“11. Mere non-examination of Investigating Officer does not in every case cause prejudice to the accused or affects the creditability of the prosecution version. In Ram Dev and Anr. v. State of U.P., [1995] Supp. 1 SCC 547, it was noted that non-examination of the Investigating Officer does not in any way create any dent in the prosecution case much less affect the credibility of otherwise trustworthy testimony of the eye witnesses. It was, however, indicated that it is always desirable for the prosecution to examine the Investigating Officer. In the present case after examinationin-chief and partial crossexamination, the Investigating Officer had died. Therefore, this cannot be a case which can be stated to have caused by prejudice to the accused on account of Investigating Officer's nonexamination. The prosecution cannot be attributed with any lapse of ulterior motives in such circumstances. In Behari Prasad and Ors. v. State of Bihar, [1996] (2) SCC 317], it was held that case of prejudice likely to be suffered mostly depends upon facts of each case and no universal straight Jacket formula should be laid down that non-examination of Investigating Officer per se vitiates the criminal trial. The said view has been found echoed in Ambika Prasad and Anr. v. State (Delhi administration, [2000] (2) SCC