Each juror, duly chosen, drawn and summoned, who fails to appear shall be subject to a civil penalty, the amount of which shall be established by the judges of the Superior Court, but the court may excuse such juror from the payment thereof. If a sufficient number of the jurors summoned do not appear, or if for any cause there is not a sufficient number of jurors to make up the panel, the court may order such number of persons who qualify for jury service under section 51-217 to be summoned as may be necessary, as talesmen, and any talesman so summoned who makes default of appearance without sufficient cause shall be subject to a civil penalty, the amount of which shall be established by the judges of the Superior Court. The provisions of this section shall be enforced by the Attorney General within available appropriations.