Evaristo said Ibama planned to investigate the possibility that Brazilian fishermen were involved in an organized criminal operation with ties to Colombia.

Evaristo称Ibama计划调查巴西渔民卷入有组织犯罪行为的可能性，这些犯罪可能与哥伦比亚有关。

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However, the scientists, led by Dr Evaristo Ballesteros, from the University of Jaen in Spain, say their technique could be used to check the safety of other types of food.

然而，来自西班牙哈恩大学的以埃瓦里斯·托罗斯博士为首的的科学家们指出他们的技术可以被用来检查其他种类的食物安全。

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Evaristo went to buy us a bottle of water, from the house of a relative, for the return trek to Iruya.

BBC: Journey to Argentina's forgotten territory

But our guide, Evaristo, who runs the only hostel in the community, told me that many have left to seek an easier life in the cities.

BBC: Journey to Argentina's forgotten territory