In regard to the third point, viz., non-communication of particular of the previous conviction of the petitioner, it may be observed that the District Magistrate, Shri Zutshi, who made the detention order, averred in the counter-affidavit which he had filed before the High Court, that at the time of making the impugned order, he knew that the petiE tioner had been previously prosecuted for offences punishable under the Prevention of Food Adulteration Act, but the judgment of the case in which he was prosecuted, was not available. Thus the detaining authority did not know whether the previous prosecution of the petitioner had resulted in his conviction. That was why he did not mention the fact of this conviction, as di~tinguished from prosecution, in the particulars of the grounds of detention communicated to the detenu. F It is note worthy that the grounds of detention were incorporated by the detaining authority in the order of detention itself, which has been quoted in extenso earlier }n this judgment. What constitutes the substance of 'the grounds is the factum of the raid and the discovery of adulterated . chilli powder, Amchur and Haldi and a large quantity of odd materials such as sawdust, donkey-dung etc. which in the opinion of the detaining authority-were-and we think for good reasons G -suspected adulterants. The presence of these suspected adulterants in bulk, safely storea in tins, may not by itself amount to an offence under the penal law but it was a relevant circumstance which could be · taken into account by the detaining authority in reaching its subjective satisfaction.