“Sanctuary Cities”: Legal Issues / CRS Report for Congress, January 2008
PDF - http://assets.opencrs.com/rpts/RS22773_20080109.pdf
"Controversy has arisen over the existence of so-called “sanctuary cities.” The term
“sanctuary city” is not defined by federal law, but it is often used to refer to those
localities which, as a result of a state or local act, ordinance, policy, or fiscal constraints,
limit their assistance to federal immigration authorities seeking to apprehend and
remove unauthorized aliens."