Amnesty International is receiving increasing allegations of serious human rights violations, such as enforced disappearance, extrajudicial executions and other unlawful killings, torture and other ill-treatment, and arbitrary detention, being committed by members of the Mexican military. The cases documented in this report show that both civilian and military authorities frequently fail to investigate these reports in a prompt, impartial and effective manner. Amnesty International hopes this report and its recommendations will help the Mexican government address this pattern of serious human rights violations swiftly and effectively.