premise: Oday Adnan Al Tekriti, 38, was initially refused a visa after he arrived in the country six years ago because immigration officials found serious reasons to believe he had committed crimes against humanity.
  But the visa refusal was overturned and he has been given temporary safe haven in the southern city of Adelaide where he lives with his wife, an Australian doctor.
  Blewitt said there had been previous instances where Canberra had allowed some people into the country because of the potential for them to give Australian authorities valuable intelligence information.
  "It could well be that this chap is also involved in supplying information and intelligence," he said.
  Blewitt said he had enough anecdotal evidence to suggest that there were mass murderers, torturers and other criminals living in Australia.
   What alleged action initially led the authorities to refuse a visa for Mr. Tekriti?
hypothesis: crimes against humanity