Podría referirse a esto:

Non-status people

This term is often used to describe many different kinds of people who do not have valid or full legal status in Canada. These are people who might otherwise be referred to as illegal immigrants. However, the term non-status people is often preferred to illegal immigrants since illegal adds stigma and implies criminality, when, in fact, most of these people have actually had some form of status
http://www.catie.ca/en/practical-guides/managing-your-health...




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Note added at 9 mins (2012-01-01 20:42:32 GMT)
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sin estatus migratorio

Por ejemplo los deportados, los refugiados, algunos aborígenes, etc. Las personas que no están amparadas -en materia de derechos civiles- por el Estado.