Sen. Alex Padilla (D-CA) introduced a bill on Tuesday seeking to expand identification requirements for Immigration and Customs Enforcement officers conducting sweeps for illegal immigrants. 

Concerns have been raised, including in Los Angeles, that ICE officers carrying out raids are doing so without identifying themselves and are, on occasion, concealing their identity with masks. The concerns have led to complaints that federal agents are operating in an authoritarian manner without full transparency, sparking a surge of kidnapping calls to police from outraged residents.