Asha was only 12 months old when she pulled over a container of boiling water on Nauru, severely scalding herself.
Under Australian law, her injuries should have been investigated by workplace safety authority Comcare but - like hundreds of other injuries, assaults and even deaths on the immigration department's watch over two years - it was not reported to the authority.
Documents provided to Fairfax Media show that Comcare, which is responsible for the health and safety of all people in Australian government workplaces, including workers and detainees in mainland and offshore detention centres, has not investigated abuse and injuries on a vast scale.
Reams of internal Comcare and Department of Immigration and Border Protection documents - released to the Australian Lawyers' Alliance (ALA) under freedom of information laws - paint a damning picture of what the ALA calls under-reporting of safety breaches "at best", and concealment at worst.
They show that of 1092 injuries,and assaults reported to Comcare by the Department of Immigration and Border Protection and its contractors over two years, almost 850 went uninvestigated.
Comcare is required to investigate so-called "notifiable incidents" and to put in place measures to improve safety based on those investigations. But the ALA claims Comcare takes a narrow view of the sort of incidents it should investigate in detention centres.
A Comcare spokesman said the Department of Immigration and Border Protection was only required to notify the authority about "deaths, serious injury or dangerous incidents", and that sexual assault may not be seen as serious enough to warrant a Comcare investigation.
"Incidents of self-harm and sexual assault, for example, may not satisfy the definition of a notifiable incident," the spokesman said.
DIBP told a Senate inquiry last year that Australian workplace laws applied to offshore detention facilities. But the Comcare spokesman said the question of who had "actual control and management" of the facilities was "complex" and was the subject of an ongoing investigation by Comcare.
The documents also allege:
- Of 20 deaths in Australia's Immigration system between July 2013 and June 2015, only four were deemed by Immigration to be "notifiable" to health and safety authorities.
- Comcare has not investigated a single sexual assault against a detainee in an offshore detention centre, despite many reports of rapes and other sexual assaults, including against children.
- The agency will only investigate sexual assaults offshore that result in hospitalisation.
Comcare recently spent two months visiting every Australian detention centre, including Christmas Island, to ensure they comply with health and safety laws. But it has not visited the Manus Island and Nauru facilities this year.
The ALA says that under workplace health and safety laws, public servants and even ministers could face legal action over the failures to act.
It has recommended Comcare consider prosecuting DIBP for failing to provide safe environments in the offshore detention centres, and called for a Royal Commission to investigate the safety breaches.
Spokesman Greg Barns said the under-reporting and lack of investigation uncovered by the ALA indicated that Comcare was reading its legislation in a very narrow sense.
"You've had 1000 incidents that were reported to Comcare by Immigration, most of which occurred in detention centres in a two-year period. And then Comcare turns around and says 845 are not notifiable," Mr Barnes said.
"For Comcare to take the view that these are not notifiable incidents under the Act is disturbing.
A Comcare spokesman denied the authority was failing to act, saying it took "a strong and effective approach to regulating work health and safety issues at immigration detention facilities, as we do with all workplaces in our jurisdiction.
"We have a number of ongoing investigations into alleged breaches of the Work Health and Safety Act at Immigration Detention Centres in Australia and at Regional Processing Centres offshore."
DIBP did not respond to a request for comment.