Myuran Sukumaran

Three members of the so-called "Bali Nine" gang of Australian heroin smugglers and two Indonesian women filed a demand in January for a judicial review by the Constitutional Court of the law that saw them sentenced to death, AFP reported.

They argued that Indonesia's constitution guarantees the right to life.

Lawyers for Australians Scott Rush, Myuran Sukumaran and Andrew Chan and two Indonesian nationals, Edith Sianturi and Rani Andriani, were awaiting the decision in the Jakarta-based court.

Constitutional Court rulings are not usually retroactive, but a favourable decision could lead to fresh appeals by the five complainants.