"Disappearances in Mexico have become commonplace because federal and state authorities have tolerated and refused to clamp down on them," Amnesty says in a new report.
Official figures say 26,000 people have gone missing since December 2006.The date coincides with the deployment of the army to fight drug cartels. Critics of the war-on-drugs policy of former President Felipe Calderon say police brought about an escalation in violence.
"These figures demonstrate one of the key human rights challenges facing the government of Enrique Pena Nieto," said Rupert Knox, Amnesty International researcher on Mexico.
Keep up-to-date with drug policy developments by subscribing to the IDPC Monthly Alert.