We have documents alleging person X said Y, because of Z. Without any real first-hand knowledge, none of us actually know how reputable the justice system is in Ecuador, how plausible bribery is, or much at all. First hand, all we know is web-pages on the internet.
I think maybe it's best to take a step back from this specific case and ask "What policies could make bribery harder in general across the board?" Is there a way to build a system (e.g. justice-system, news-system) that results in less ambiguity?