Sentence:  People landing on these islands could also be transferred to <WSD>detention centres</WSD> on Nauru or Manus Island and had no access to Australia′s legal system. 
Meaning of the word marked with <WSD> tags:  An immigration detention facility; a facility in which people who have attempted to enter Australia without prior authorisation are detained, pending a decision on whether they are to be accepted as refugees or returned to their country of origin.