Human Rights Watch submits this complaint and requests that the Department of Homeland Security (DHS) Office of Inspector General (OIG) and Office for Civil Rights and Civil Liberties (CRCL) investigate and report on the Migrant Protection Protocols (MPP) program and hold DHS accountable for knowingly subjecting asylum seekers to situations of persecution and other serious harm in the Mexican state of Tamaulipas in violation of its own policies and its obligations under US and international law. The dangers asylum seekers in the MPP program face are now even more acute during the Covid-19 pandemic, as asylum seekers are forced to wait for delayed hearings in crowded camps and shelters with limited and rudimentary sanitation facilities.