Postponement of execution requires High Court to stay a death sentence pending Supreme Court appeal or certificate and leave petitions. The High Court must postpone execution of a death sentence when an appeal to the Supreme Court lies or is preferred, staying execution until the appeal is disposed of or the period for filing has expired; it must similarly postpone execution while applications for certificates enabling appeal are pending or until the period for appeal after grant has expired, and may postpone when satisfied that the condemned intends to seek special leave to appeal to the Supreme Court to allow time to present that petition.