From Google: "A sanctuary city is a city in the United States or Canada that adopts local policies designed to not prosecute people solely for being an undocume

From Google: "A sanctuary city is a city in the United States or Canada that adopts local policies designed to not prosecute people solely for being an undocumented individual in the country in which they are currently living. These practices can be by law (de jure) or they can be in fact (de facto)."