This publication of the Brookings-Bern Project on Internal Displacement provides the first comprehensive analysis of the role of the Colombian Constitutional Court in addressing the situation of internal displacement in Colombia and the protection needs of one of the world's largest populations of internally displaced persons (IDPs). It is also among the first resources of its kind to examine how a court of law has incorporated the Guiding Principles on Internal Displacement into national law and relied upon this instrument to construe the nature and scope of fundamental rights enjoyed by internally displaced persons at the national level.