Chicago’s July 2012 Welcoming City Ordinance, per a press release from the city, “builds on an existing ordinance and longtime City policy that prohibits agencies from inquiring about the immigration status of people seeking City services, and provides that the Chicago Police Department will not question crime victims, witnesses and other law-abiding
residents about their legal status.
Santa Clara County, in which San Jose is located, has a Rapid Response Network, to alert people about ICE raids. “Training is led by Pangea Legal Services, Sacred Heart Community Service and PACT: People Acting in Community Together. The Rapid Response Network aims to expand the community’s capacity to monitor and document ICE operations in real time.”
New York City enacted in December, 2017 a law (2017/228) “That would prohibit City agencies from partnering with the U.S. Department of Homeland Security to enforce federal immigration law, including through 287(g) agreements. Additionally, this bill would prohibit the use of City resources, property, and information obtained on behalf of the City in furtherance of federal immigration enforcement.”
San Francisco passed in 1989 the “City and County of Refuge” Ordinance (also known as the Sanctuary Ordinance). The Sanctuary Ordinance generally prohibits City employees from using City funds or resources to assist Immigration and Customs Enforcement (ICE) in the enforcement of Federal immigration law unless such assistance is required by federal or state law. In 2013, San Francisco passed the “Due Process for All” Ordinance. This ordinance limits when City law enforcement officers may give ICE advance notice of a person’s release from local jail. It also prohibits cooperation with ICE detainer requests, sometimes referred to as “ICE holds.”
(Source: here.)