This brochure provides a brief overview of the work of the IDB Independent Consultation and Investigation Mechanism (MICI) and its procedure to file a complaint. Civil society organisations, workers, communities and groups of individuals who are harmed by a Bank project can use the MICI to address their grievance. This brochure briefly explains how.The document was prepared jointly by FUNDEPS and SOMO, and is part of a series of brochures on grievance mechanisms produced within SOMO’s Human Rights & Grievance Mechanisms Programme (see: http://grievancemechanisms.org/resources/brochures).