A federal judge in California on Tuesday issued a nationwide block against the Trump administration’s policy of making arrests at immigration courts, putting an end to a practice that garnered national attention.

Last year, Immigration and Customs Enforcement began detaining migrants in courthouse hallways across the country, sometimes moments after pleading their cases. The move raised alarm among attorneys and advocates who said the practice was turning immigration courts from places of due process into zones of fear and punishing people who were following the rules.

Tuesday’s ruling marks a major blow to the Trump administration, which rescinded long-held guidance that had limited immigration enforcement in or near courthouse, though the White House on Tuesday also notched a legal victory in its mass deportation efforts in a separate case.

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