The Coun­ty Clerk after con­sid­er­a­tion of the appli­ca­tion, infor­ma­tion obtained rel­a­tive there­to, and pay­ment of the fee pre­scribed in Sec­tion 7–6‑10 here­of, shall issue a reg­is­tra­tion cer­tifi­cate card to appli­cant, or may deny the appli­ca­tion.  The Coun­ty Clerk may upon review­ing an appli­ca­tion pro­vide the Sher­iff a copy of same who shall inves­ti­gate the busi­ness char­ac­ter of the appli­cant and sub­mit a report to the Coun­ty Clerk with­in ten (10) days of receipt.  Any cer­tifi­cate of reg­is­tra­tion issued here­un­der may be revoked by the Coun­ty Clerk, if the cer­tifi­cate hold­er is con­vict­ed of a vio­la­tion of any pro­vi­sion of this Chap­ter or any oth­er ordi­nance of this Coun­ty, or of any State or Fed­er­al law, or has made a false mate­r­i­al state­ment in his appli­ca­tion.  To revoke a cer­tifi­cate, the Coun­ty Clerk shall mail by cer­ti­fied or reg­is­tered mail to cer­tifi­cate holder’s last address shown in his or her appli­ca­tion a let­ter stat­ing cer­tifi­cate is revoked and rea­sons there­fore.  The date of mail­ing of this notice shall deter­mine the date that the cer­tifi­cate is null and void.