7news on Seven: "Systematic failures in the Immigration Department's procedures for dealing with illegal workers and visitors overstaying their visas has reportedly left tens of thousands of people in Australia.
Onshore Compliance - visa overstayers and Non-citizens working illegally
http://www.anao.gov.au/WebSite.nsf/Publications/47EE4535A1713932CA256ED000751FA6
http://www.anao.gov.au/WebSite.nsf/Publications/47EE4535A1713932CA256ED000751FA6/$file/Audit%20Report%202.pdf"
"
