was true, then there should be a very small amount or even none of the fibres and hair samples from that night still on Kelvin's clothing some 36 hours later, let alone five weeks later. Faced with such damning scientific evidence, the defence tried to counter this during cross-examination by floating a possible theory that after von Einem's last contact with Kelvin, he had been abducted by other people, who had stored his clothing for five weeks before murdering him and re-dressing him. While the forensic scientists conceded that this was a possible scenario, under renewed cross-examination by the prosecution, they conceded that it would be still unlikely given the whole science of how fibres and hair are transferred from surface to surface over time. The prosecution then rested its case. The defence opted for von Einem to give an unsworn statement from the dock, rather than give sworn evidence from the witness box. In his unsworn statement, von Einem detailed his alibi with what he claimed happened between 5 June and 11 July 1983. He again claimed that on 5 June he had picked up Kelvin in North Adelaide, had driven him to his home, and later had dropped him off in the Adelaide CBD. He also claimed that he was sick with the flu for the next week after that and did not return to work until 14 June. von Einem was quite sketchy on his activities after that, however he did remember what he did on 10 July, the day the body was dumped on the airstrip. He said that he was at a relative's birthday party with his mother for most of that evening, and after dropping off a friend on the way home, had gone straight to bed and then to work the next day. He also addressed the issue of the noisy exhaust on the car heard during the abduction of Kelvin, by stating that the exhaust on his Ford Falcon (which von Einem had sold on 16 July 1983, purportedly to raise money for his overseas trip) was less than two years old and in good condition. He closed his unsworn statement by again claiming his innocence. The defence then called various witnesses in an attempt to corroborate von Einem's story. The witnesses included colleagues and friends who testified to him being unwell and at home during the first week of Kelvin's captivity.