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.