This bill, known as Sarah's Law, aims to strengthen immigration enforcement by mandating the detention of certain aliens. It specifically targets individuals who have been charged in the United States with a crime that resulted in the death or serious bodily injury of another person. The legislation requires U.S. Immigration and Customs Enforcement (ICE) to take these aliens into custody. The bill amends the Immigration and Nationality Act to include this new category for mandatory detention, applying to aliens who were not properly admitted, had a revoked visa, or are otherwise deportable. Furthermore, it establishes a crucial notification requirement for ICE. Upon encountering or learning about such an alien, ICE must make reasonable efforts to obtain victim information and provide timely updates to victims or their closest relatives regarding the alien's identity, immigration and criminal history, custody status, and any government efforts to remove them from the United States.