Any person who knowingly and wilfully communicates to another, either orally or in writing, any statement concerning any person then or theretofore convicted of a felony, and then on parole, and which communication is made with the purpose and intent to deprive said person so convicted of employment, or to prevent him from procuring the same, or with the purpose and intent to extort from him any money or article of value; and any person who threatens to make any said communication with the purpose and intent to extort money or any article of value from said person so convicted of a felony, is guilty of a misdemeanor.