The US Court of Appeals for the First Circuit says federal immigration authorities need probable cause to issue an immigration detainer.
The appeals court on Friday affirmed last year's decision by a federal judge in Rhode Island, who found that a naturalized US citizen's Fourth Amendment rights against unreasonable searches and seizures were violated when she was held on an immigration detainer.
The decision means the woman's lawsuit against officials at US Immigration and Customs Enforcement can move forward. She is also suing officials at the Rhode Island Department of Corrections. The ACLU is representing her.