The Jakarta State Administrative Court will rule on the appeal of the two Australians, sentenced to death by firing squad for smuggling drugs, next week. The court's decision is due on April 6.
Andrew Chan and Myuran Sukumaran, the leaders of the so-called Bali Nine gang, were convicted of trying to smuggle 8.3kg (18lbs) of heroin out of Indonesia in 2006.
Indonesian President Joko Widodo recently rejected their plea for clemency. The lawyers for the Bali Nine duo attempt to challenge Widodo's decision. The appeal is Chan's and Sukumaran's last hope to avoid execution.