Mr Xie's ''fondness'' for his niece and the fact that she had been overseas when her family was killed led police to believe she was safe in the home, he said.
In a letter to the editor, one Herald reader, Mukul Desai, wrote: ''It beggars belief why police would allow that young girl to stay with the alleged Lin family killer when they suspected all along that he was the prime suspect. Breathtaking!''
''We have a young girl whose family has basically been wiped out,'' said the vice-president of the Victims of Crime Assistance League, Howard Brown.
''They would have then placed listening devices in the house so that they were then able to monitor whether [the girl] or her aunt were at risk,'' he said. ''There is no way in the world that [police] would have put [her] at risk. I have no issues with the way they've dealt with it at all.''