the currents of the Indian Ocean would have propelled a carley float, launched at the location and time of the battle, to the vicinity of Christmas Island, at around the time of its discovery. According to Olson, the rope used on the float and markings on the float were of naval origin and the descriptions of marine growth on the float matched the period that a float from Sydney would have been in the water. In 2000, Olson claimed that evidence presented at the 1998 inquiry had changed Frame's mind. Investigations since 1998 Recovery of the body The 1998 Joint Standing Committee for Foreign Affairs, Defence and Trade inquiry into the loss of Sydney recommended that attempts be made to find the grave, to exhume the body and acquire DNA for comparison with the next of kin of the crew of Sydney, to determine if the unknown sailor was from the cruiser. The RAN searched the graveyard during August and September 2001 to no avail but a second search in October 2006 found the body.Cole, The Loss of HMAS Sydney II, vol. 2, pp. 332 When it was found, the body was in an unusually-shaped coffin, which appeared to have been constructed around it as the body was buried "with legs doubled under at the knee" the same position it had been in when found on the raft, possibly due to mummification. Press studs and small fragments of clothing were found in the coffin. Following an autopsy and the taking of samples from the body for identification, the remains of the unknown sailor were reburied in the Commonwealth War Graves section in the Geraldton Cemetery in Western Australia with full military honours on 19 November 2008.Cole, The Loss of HMAS Sydney II, vol. 2, pp. 323 Autopsy and subsequent research Brain trauma caused by a shell fragment of German origin has been identified as the cause of death.Billson 2007 Bruce Billson (the Minister Assisting the Minister for Defence) reported that a piece of shrapnel struck the front of the skull and lodged in the left forehead. On first examination, it was thought that the fragment might have been a bullet, although this hypothesis was later rejected. In addition to this injury, the pathologist identified a second major skull injury, with bone loss on the left side, above and behind the left earhole, which is also believed to have occurred around