AFP to come clean on its involvement in the Bali Nine arrests

The Australian Federal Police is set to finally reveal its involvement in the arrest of the Bali Nine, two of whom now face imminent execution.

Authorities in Indonesia have begun final preparations for the transfer or Myuran Sukumaran and Andrew Chan from Bali to another island for execution, possibly within days.

The AFP has been criticised for the role it played in the 2005 arrests, with former foreign minister Bob Carr calling for a full explanation.

AFP Deputy Commissioner Graham Ashton says he agrees, but no public statement will be made while there are still efforts underway to save them.

"We don't want to say anything that is going to potentially influence that," he said.

The AFP's involvement has - to date - been unclear.

It has been reported that Bali Nine member Scott Rush's father, Lee, organised the AFP to be tipped off in order for Scott to be intercepted before leaving the country.

By his account, he was assured this would happen.

However, the AFP tipped off their counterparts in the Indonesian National Police, and the group was arrested in Bali.

Indonesia regularly imposes the death penalty for drug trafficking.