Before any license is revoked the secretary shall give the licensee at least ten days' notice of the time and place of hearing before the secretary and shall furnish him with a copy of the complaint against him, which complaint and notice shall be served upon the licensee in the manner provided in section 4:11-24 of this title.
At the time and place fixed for hearing the secretary shall receive evidence, administer oaths, examine witnesses and hear the testimony and shall thereafter file an order either dismissing the proceeding or revoking the license.