of documented migrant deaths. (2) A geographical breakdown of where such migrant deaths occur. (3) To the extent possible, the cause of death for each migrant. (4) The extent to which border technology, physical barriers, and enforcement programs have contributed to such migrant deaths. (5) A detailed description of U.S. Customs and Border Protection programs or plans to reduce the number of migrant deaths along the border, including an assessment on the effectiveness of water supply sites and rescue beacons. (b) GAO report on migrant deaths Not later than 90 days after the submission of the report required under subsection (a), the Comptroller General of the United States shall review such report to determine the following: (1) The validity of U.S. Customs and Border Protection’s statistical analysis of migrant deaths. (2) The extent to which U.S. Customs and Border Protection has adopted simple and low-cost measures, such as water supply sites and rescue beacons, to reduce the frequency of migrant deaths. (3) The extent to which U.S. Customs and Border Protection measures the effectiveness of its programs to address the frequency of migrant deaths. (4) The extent of data and information sharing and cooperation between U.S. Customs and Border Protection, State and local law enforcement, foreign diplomatic and consular posts, and nongovernmental organizations to accurately identify deceased individuals and notify family members and compare information to missing persons registries. (c) GAO report on use of force (1) In general Not later than one year after the date of the enactment of this Act, the Comptroller General of the United States shall examine the extent to which U.S. Customs and Border Protection has clarified use of force policies, including the following (and any recommendations related to the following): (A) The extent to which U.S. Customs and Border Protection has implemented new training tactics to improve use of force policies, including how the use of force policy conforms to Department of