In October 2006, Dixie's DNA was sent to Western Australia to be tested against that of the DNA evidence in the Claremont serial killer case between 1996 and 1997, as it is believed he was in the area at the time of the killings, and may have committed them. At his trial for the murder of Sally Anne Bowman, an unnamed Thai woman gave evidence that Dixie had stabbed and raped her in Australia in 1998; Dixie has yet to be formally charged with this attack, though a DNA sample from the woman's underwear has been matched to him.