Scott Morrison says his Attorney-General will co-operate with any coronial inquest that may be held into the death of a woman Christian Porter allegedly raped in 1988, but there will be no other independent inquiry as is being demanded by the government’s political opponents.

The parents of the woman, who committed suicide in June last year, have told her friends who are advocating on her behalf that they doubt her claims about being raped as a 16-year-old due to her mental health issues.