Act or under IPC, this self-serving report cannot be accepted for the simple reason that when such a raid was conducted and when it was alleged by such companies that there is violation of Copy Right Act by the vendors of such castrol oil or other products and if it is noticed that such a duplicate oil is being sold, for ascertaining the same, it is the duty of the complainant or the Investigating Officer, as the case may be, to submit the same to the competent agency i.e. Govt. public analyst to know that whether such oil so seized is duplicate oil or not. The public analyst is the best person to analyze the product and assertain that whether it is duplicate or original one. But this PW5 is a quality control manager of castrol oil India Limited and he has certified that M.O.4 to 6 contain duplicate castrol oil. Though he corroborates the contents of those reports, but in the cross-examination, he states that the cans are similar so seized by the police. He deposed ignorance about individual identification of the packets. So also, he says that, his assistant by name Shekhar has opened the packets. It was Shekhar, who examined the said material objects and prepared the report and on examining the said report he put his signature. Evidently said Shekhar is not examined by the