M/s. Tata Chemicals Ltd. v. Commissioner of Customs (Preventive), Jamnagar
Background
Tata Chemicals and another company imported coking coal under customs notifications that exempted coal with ash content below 12% from certain duties. An independent international testing agency certified the ash content at 9.8%, well under the threshold, and the companies claimed the exemption on that basis. However, a customs inspector later drew his own samples, not in accordance with the prescribed Indian Standard (IS 436) sampling procedure and without any representative of the companies present, and government labs reported ash content above 12%, leading to a demand for differential customs duty running into crores of rupees.
Decision Breakdown
The Supreme Court found that the customs department's own samples were drawn in clear violation of the mandatory IS 436 sampling procedure, and that no genuine representative of the appellants was present when the samples were taken. The Tribunal below had wrongly held that the companies were "estopped" from objecting because someone was supposedly present at the sampling: the Court rejected this, holding there can be no estoppel against a mandatory legal procedure and that an illegal act cannot be made legal merely because a third party failed to object. Since the department's test reports were based on improperly drawn samples, they could not be relied upon, and the original independent certification (showing ash content below 12%) stood. The Tribunal's judgment was set aside and the appeals were allowed, with no order as to costs.
Lesson Learnt
When a law or regulation prescribes a specific procedure for testing, sampling, or verification, strict compliance with that procedure is mandatory: evidence or test results obtained by deviating from the prescribed method cannot be used against a party, regardless of whether someone failed to object at the time.