1 2 . It cannot be gainsaid, therefore, that the respondents in these appeals have been deprived of their valuable right to have the sample tested from the Central Insecticides Laboratory under sub- section (4) of Section 24 of the Act. Under sub-section (3) of Section 24 report signed by the Insecticide analyst shall be evidence of the facts stated therein and shall be conclusive evidence against the accused only if the accused do not, within 28 days of the receipt of the report, notify in writing to the Insecticides Inspector or the Court before which proceedings are pending that they intend to adduce evidence to controvert the report. In the present cases Insecticide Inspector was notified that the accused intended to adduce evidence to controvert the report. By the time the matter reached the court, shelf life of the sample had already expired and no purpose would have been served informing the court of such an intention. The report of the Insecticide Analyst was, therefore, not conclusive. A valuable right had been conferred on the accused to have the sample tested from the Central Insecticides Laboratory and in the circumstances of the case accused have been deprived of that right, thus, prejudicing them in their defence.”