no one at funai is willing to talk to us.ipuna say the authority turns a blind eye to what's happening in the amazon. andrÉ karipuna takes us to another part of the forest. we send up a drone to film the area. in the capital porto velho, we have an appointment at the federal prosecutor's office, whose job it is to uphold the constitution. the public prosecutor often acts as a regulator for issues affecting the environment and human rights. we ask her what tools she has at her disposal to stop this destruction. nothing that's quick, she says. lengthy civil cases that drag on for years. and otherwise? we always try to keep pace with these crimes and to expose the criminal structures behind them and to prosecute them. but there are no state measures that are preventive. is that frustrating, i ask? >> yes, it is frustrating. we have had some successes, like with two of our operations in 2019 and 2020, where we were able to curb illegal activities on indigenous territory flights over the area later showed that the deforestation wa