Condemned Bali Nine pair's ongoing battle to spare their lives has moved to Indonesia's constitutional court, a challenge that has been labelled as a delay tactic. Andrew Chan and Myuran Sukumaran lost a bid to challenge their clemency rejections in the state administrative court, which upheld its earlier decision that presidential decrees were outside its jurisdiction on Monday . As Jakarta waits on the legal efforts of a few other prisoners before setting an execution date, the two Australian's lawyers sought a constitutional court review to make clear the president's obligations on considering clemency on Thursday - a process that could take several months. Andrew Chan (left) and Myuran Sukumaran (right) are now appealing to Indonesia's constitutional court . Attorney-General HM Prasetyo has declared the move by the pair's lawyers as a delay tactic . They also intend to challenge the barrier preventing foreign citizens from constitutional court appeals. However, Attorney-General HM Prasetyo has dismissed the challenge as delaying tactics and says he won't recognise it. Indonesian lawyer for the death row pair, Inneke Kusuma, told reporters the effort was not aimed at delaying the executions, but clarifying a prisoner's rights. The president's obligations when assessing a prisoner's life were unclear, she argued, such as the weight that should be given to rehabilitation. 'This judicial review won't delay the executions but we will tell the government please hold on until this process is done, because if the constitutional court accepts what we lodge, the documents, maybe there will be a new mechanism to consider their clemency,' she said. The pair's lawyers also intend to challenge the barrier preventing foreign citizens from constitutional court appeals . Sukumaran (left) and Chan (right) are now imprisoned on Central Java's Nusakambangan island where they face the prospect of death by firing squad . The lawyers' argument is that President Joko Widodo breached his responsibilities to treat the applications for mercy on their merits, instead rejecting them because he wishes to deny clemency to all death row drug offenders. Mr Prasetyo says the pair have already had their appeals and any constitutional court decision would only apply to future cases anyway - not that of the condemned duo. Meanwhile, his spokesman Tony Spontana said an execution date that avoids the Asia-Africa Conference was still being considered, when Indonesia plays host to various heads of state from April 18 - 24. Mr Spontana said although it was legal - it would not be ethical to carry out the executions while hosting the international event but they would continue to look for a 'good day' during this month for the prisoners to face death row. The Sydney men are now imprisoned on Central Java's Nusakambangan island where they face the prospect of death by firing squad. Two of the other eight prisoners in line for execution with the Australians have applied for Supreme Court judicial reviews, while another is also pursuing an administrative court case.
Bali Nine lawyers appeal to Indonesia's constitutional court for review . Indonesian Attorney-General dismisses challenge as a 'delay tactic' Three other death row inmates are currently appealing decision . Indonesia is still looking for date around hosting Asia-Africa Conference .