If, while conducting an inspection under § 21-249 of this subtitle or while performing any other function under this subtitle, the Secretary obtains a sample of a food or drug, the Secretary may have an analysis or other examination made in a laboratory of the Department to determine: As to a food sample, whether the food: Is misbranded; Contains any filthy, putrid, or decomposed substance; or Is otherwise adulterated or unfit for food; or As to a drug sample, whether the drug: Is adulterated; or Is misbranded. The results of an analysis or other examination conducted under this section shall be set forth in a written report and a copy of the report shall be given promptly to the owner, operator, or agent in charge of the establishment from which the sample was obtained.