If, after a case has already been filed pursuant to Rule 13, the Adjudicating Authority or the appeal hearing court, on a petition made by the accused, considers it reasonable to have the concerned food re-analyzed or re-tested, and sends the concerned food held under Clause (b) of Sub-rule (1) of Rule 10 to the chief of the Department of Food Technology and Quality Control 23 for its re-analysis or re-test; and no petition may be made for another re-analysis once the sample is so re-
analyzed.