Laws? Sanctuary cities have been condemned by divine fatwa by The Great Dump, America's God and Führer! Es war eine Befehl!!
Essentially yes. The picture of sanctuary jurisdictions that is being painted at the highest levels of the Trump administration is that of a lawless territory where local officials stand guard outside jails or enclaves of illegal aliens and make rude gestures at ICE agents waving American flags. Okay, hyperbole aside, the Trump administration very much accuses these jurisdictions of "defying federal law," by which they mean federal immigration law. All that is to distract from the very real Constitutional provisions that protect the rights and powers of states.
If a local policeman comes to you door and demands entry without a warrant, you are by no means "defying police authority" if you exercise your rights under the 4th amendment.
What must be understood about sanctuary jurisdictions is that they must absolutely bow to a judicial warrant. If an ICE agent presents a judicial arrest warrant to, say, the warden of a jail ordering him to release a prisoner only into ICE custody, then any action he would take to prevent that would be considered a violation of federal law and he could be arrested and charged for obstruction and/or criminal contempt of court.
Another ICE shenanigan is a so-called "detainer warrant." Again, unless issued by a judge, this is a pseudo-legal document that carries no authority and imposes no enforceable obligation. It purports to be an order to a jurisdiction to detain a person on behalf of ICE upon the assertion that the person is wanted in connection with an immigration inquiry. The jurisdiction is under no obligation to arrest or detain anyone for any reason simply because a federal officer asks them to. It doesn't matter that the request is on an impressively-formatted sheet of paper. A
judicial warrant of detainer is a thing, and must be obeyed. But most ICE "requests" are simply these attempts to skirt the Constitution.
Now a jurisdiction may
voluntarily allow their officers to be deputized under federal enforcement agencies. This happens, for example, when the Secret Service deputizes local law enforcement to augment security for an official's visit. And some states such as Texas have voluntarily deputized their state police forces to ICE. Republicans misrepresent this as the correct and lawful order, against which sanctuary jurisdictions are unlawfully militating.
Whether Utah is a sanctuary jurisdiction depends on who you ask. According to our newly-MAGA governor, we are not. According to nearly everyone else, we are. Here's where the Mormon church gets a rare thumbs-up from me. In their efforts to gather everyone to Zion, they have welcomed immigrants from all over the world. While the church doesn't officially sanction illegal immigration, they are informally quite sympathetic to people coming from the Spanish-speaking world that constitutes their biggest growth sector. And since quite a number of state officials and officers are Mormons, there's very much a wink-wink, nudge-nudge approach to cooperating with ICE.