This bill would prohibit Washington, D.C. from enforcing "sanctuary" policies that restrict local officials from sharing immigration status information with federal authorities or complying with federal immigration detention requests. The legislation targets D.C.'s current policies that limit cooperation with the Department of Homeland Security on immigration matters. However, the bill includes an exception allowing D.C. to maintain protections for crime victims and witnesses who come forward, even if they are undocumented immigrants. The measure would effectively require D.C. to align its local immigration policies with federal immigration enforcement. No specific funding or implementation timeline is specified in the bill.