section_path: Crime and law enforcement/Document fraud
section_name: Document fraud
paragraph_text: Document fraud
  
  Illegal immigrants sometimes use Social Security numbers belonging to others in order to obtain fake work documentation. In 2009, the US Supreme Court ruled in the case of Flores-Figueroa v. United States that illegal immigrants cannot be prosecuted for identity theft if they use "made-up" Social Security numbers that they do not know belong to someone else; to be guilty of identity theft with regard to social security numbers, they must know that the social security numbers that they use belong to others.