“‘HB 19-1124, which prevents ICE from working with local law enforcement, has caused countless criminal illegal aliens to go completely unrecognized in the criminal justice system,” National Immigration Center for Enforcement (NICE) advisory board member John Fabbricatore told Breitbart News in a statement.”
https://conservativeinstitute.org/conservative-news/a-member-of-the-ms-13-gang-was-among-13-illegal-aliens-sentenced-for-murder-in-colorado.htm
Read or listen to the Catholic understanding of sanctuary (not what you have heard):
https://www.catholic.com/encyclopedia/sanctuary-right-of-refuge