Drugs war deaths strain Mexican forensics investigators
13 July 2011 Last updated at 00:58 BST
The scale of drug-related deaths in Mexico, and above all the discovery of mass graves, is straining the country's forensic services.
Some mortuaries in the violence hot spots - mostly in the north near the US border - have been overwhelmed by the discovery of hundreds of corpses.
Mexican officials say the number of forensic staff employed at a national level is now 1,500 - up from 454 a decade ago.
Julian Miglierini visited Mexico City's Forensic Medical Service to see their work.