The court can set a party ex parte only if it can proceed further in his absence. Rule 37(2) prescribes that when a judgment debtor fails to respond to the notice issued under Rule 37(1) the court shall issue an arrest warrant against him, which is only to secure his presence for the enquiry contemplated in Rule 40(1) and not for non-payment of the decree debt. But he is at liberty to surrender before the court before he is arrested. When he is arrested and produced, or surrenders before the court, Rule 40 comes in to play. As the court has not proceeded to the stage of enquiry regarding his means to pay the debt, he has not lost his right to show cause why he should not be detained in jail for non-payment of the debt. Even if he does not show cause, he cannot be immediately ordered to be detained in jail unless the decree holder proves that he has the means to pay the debt. No means is pleaded or not, the court has to conduct an enquiry, in which the decree holder should adduce evidence to establish his allegation of the judgment debtor having the means to pay the debt. Sub Rule 2 of Rule 40 gives discretion to the court to release the latter on his furnishing security for his appearance or to detain him in the custody of an officer of the court during the pendency of the enquiry. The detention under this sub rule is