Registration cards under this article shall be given without charge to all applicants who have complied with § 8-1-2, unless the Chief of Police discovers that any such applicant is deemed not to be a proper person to be permitted to go from house to house because of any of the following reasons:
   A.   He or she has a criminal record;
   B.   He or she is associated with a company that has engaged in fraudulent dealings; or
   C.   The proposed sales proposition includes some element of trickery, fraud, or deceit, in which case, in the interest of public safety and protection, the applicant shall not be registered.