The report, released on Monday, found there was a concerning "lack of access to healthcare", including emergency, out-of-hours, and mental health services, which presented "a very significant risk to people detained".
Many of those being held at the centre were detained due to visa cancellations based on character grounds.
Finlay said the cohort of people entering immigration detention had changed significantly over time.
'Unsafe' immigration detention centre labelled 'not fit for purpose' in new report. SBS