supervisor gus van hartman in toronto to discuss the upcoming trial. a specialist in international investment law highly critical of arbitration tribunals he has regularly intervened on the international scene sounding the alarm for years. but only in 5 of the last weeks have been like a roller coaster in colombia i mean these claim. no one i want to talk to you about the sort of. force or go yet of the mining case yes 16000000000 u.s. i would say 20 percent of colombia's national product budget it was quite surprising because public authorities were saying that the agreements negotiated were positive for the corn 3 and that foreign investors would never start by claiming that corn 3 in these very moment is what happened then why is that colombian law is not good enough for these foreign investors it is not the case that core long as i think that our ships were trying to solve our problems we're trying to become a more stable country and we have the means to do it but with these type of cases all our efforts to reach durable peace are put into question