F11[11.—A relevant member of staff duly authorised in that behalf by the Chief Executive Officer of the Courts Service, using a procedure of random or other non-discriminatory selection, shall draw up a panel of jurors for one or more courts within each jury district from the register or registers relating to the jury district concerned delivered to the designated court office under section 10 (omitting persons whom he or she knows or believes not to be qualified as jurors).]