The police presence and officers’ response is determined on a case-by-case basis, law enforcement officials said. Those interviewed said they support protesters’ First Amendment rights to free speech and assembly, but that demonstrations shouldn’t evolve into breaking the law or putting themselves or others in danger.

A demonstration at Los Angeles City Hall has shut down a portion of Spring Street in downtown on Saturday, police said. Protesters in opposition to the Trump administration’s deportations and stance on immigration have flocked to downtown LA for a second weekend in a row.