A per­son com­mits a Class A mis­de­meanor if the per­son know­ing­ly allows a per­son under the age of eigh­teen (18) years on the premis­es of a sex­u­al­ly ori­ent­ed busi­ness.  This Sec­tion does not pre­clude the admin­is­tra­tion of jus­tice in accor­dance with the laws of the State ofIll­i­nois as they may be found with­in the Crim­i­nal Code or otherwise.