In another controversial plan, the Justice Ministry will use electronic maps to locate foreigners believed to be staying here illegally, as well as businesses that have hired illegal workers, sources said.
Criticism had already been lodged against the plan, much like the Justice Ministry’s system set up in 2004 of having the public send e-mail information about foreigners who seem to be living in the country illegally. The Japan Federation of Bar Associations has criticized the e-mail tip-off system for encouraging citizens to betray their neighbors. The federation said the system should end.
http://www.asahi.com/english/Herald-asahi/TKY200604060246.html