The Commissioner is charged with the administration and enforcement of this article, except as otherwise provided in this article. Only upon a complaint made to the Commissioner relating to a violation of this article may the Commissioner inspect the premises of a holder of a license or permit issued by the Commissioner. The Commissioner may refuse to issue, may suspend or may revoke the license or permit of any person (i) who violates any provision of this article, any regulation of the Board pursuant to this article or any order of the Board or Commissioner or (ii) who is not a resident of the Commonwealth and fails or refuses to enter an appearance in any circuit court in the Commonwealth to answer a charge or charges of violation of any provision of this article, regulation of the Board or order of the Board or Commissioner within 25 days after service upon him of a notice by certified mail.