If the secretary finds that an applicant for a certificate of title or registration of a boat is not entitled thereto, under the provisions of this chapter or the chapter which imposes tax on boats, the secretary may refuse to issue a certificate or to register such vehicles, and may for a like reason, and after notice and hearing, revoke title, license, and registration already acquired. The notice shall be served in person or by registered or certified mail.
SDCL 32-3A-49