The IMPACS REPORT: What’s The Leahy Law?
The Leahy Law or Leahy amendment is a U.S. human rights law that prohibits the U.S. Department of State and Department of Defense from providing military assistance to foreign military units that violate human rights with impunity.
 It is named after its principal sponsor, Senator Patrick Leahy of Vermont.
 To implement this law, U.S. embassies and the Bureau of Democracy, Human Rights and Labor and the appropriate regional bureau of the U.S. Department of State vet potential recipients of security assistance.
 If a unit is found to have been credibly implicated in a serious abuse of human rights, assistance is denied until the host nation government takes effective steps to bring the responsible persons within the unit to justice. While the U.S. Government does not publicly report on foreign armed force units it has cut off from receiving assistance, press reports have indicated that security force units in Bangladesh, Bolivia, Colombia, Guatemala, Mexico, Nigeria, Turkey, Indonesia and Pakistan have been denied assistance due to the Leahy Law.