Amanda Trebach, a registered nurse and U.S. citizen working in intensive care units serving low-income communities in Watts, Compton, and South Central Los Angeles, was arrested by federal agents on August 8, 2025, while documenting immigration enforcement operations at Terminal Island in San Pedro as a volunteer with Harbor Area Peace Patrol and Unión del Barrio. Video evidence shows masked federal agents pinning her face-down to the pavement, kneeling on her head, handcuffing her, and placing her into an unmarked van. CBP accused her of jumping in front of vehicles and obstructing federal agents; witnesses and video disputed these allegations. Trebach, whose cell phone was confiscated without a search warrant, says agents did not identify themselves and told her to stop photographing. She spent approximately one day in federal custody at the Metropolitan Detention Center in downtown Los Angeles before being released without criminal charges. Her release followed demonstrations at the detention center and calls from local elected leaders, including Councilmember Tim McOsker, who characterized the arrest as "apparently illegal and unconstitutional." National Nurses United, representing 225,000 registered nurses, celebrated her release. Trebach has continued documenting immigration enforcement operations and has been working to protect migrant patients from immigration raids; she reports that migrants in her community are now avoiding hospitals out of fear of encountering immigration enforcement.