. —— tomas zeron.e 28th of october would become a contested part of the government's investigation. this is the afternoon of that day, the 28th. this is like one, two hours after tomas zeron has left the scene. this is the forensic team. they are making an inspection on a riverbank, picking up small things and putting them in forensic bags for evidence. at that point, forensic argentina group arrive and i thought the guys with the white suits were working with the argentinians. later, i knew that the argentinians didn't have any idea what had happened, just a couple of metres below them. and it was obvious they were having an argument. irate obvious they were having an argument-— obvious they were having an aruument. ~ ., ., argument. we came down from the uuard argument. we came down from the guard jump — argument. we came down from the guard jump little — argument. we came down from the guard jump little bit _ argument. we came down from the guard jump little bit earlier- guard jump little bit earlie

zeron, head of the criminal investigation agency. students was progressing, over the hills of iguala, they started finding many places with clandestine graves. other families approached us that have someone missing in their family that have disappeared around the same time, but they were not part of the students. that was the first time we started knowing that there were actually hundreds of people that have disappeared, you know, in iguala over the past few years. and it wasjust... it wasjust horrifying, yeah. it wasjust hard to believe how organised it was and how everybody knew that those spots were places you would not go. it's like an invisible, or not so invisible presence, that is constantly there. you entered into territories that are... ..you know, controlled by organised crime. in mexico, the war on drugs starts in 2006. at that time, the military budget and the federal police budgets increased enormously. there is this massive just influx of cash, both from the national resources and internationally... ..so they're buying