Every duly authorized agent of the department of health may enter any place where vinegar is stored or kept for sale, and examine all carriages used in the conveyance of vinegar; and whenever the agent has reason to believe any vinegar found by him or her is adulterated, the agent shall take specimens of it and cause the vinegar to be analyzed or satisfactorily tested, the result of which the agent shall record and preserve as evidence, and a certificate of the result, sworn to by the analyzer, shall be admissible in evidence in all prosecutions under this chapter.