We have an eight step method that is published on our website so that anyone can replicate the work we have done. Part of the method consists of contacting the person who made the statement, consulting the relevant official sources and alternative sources. We clearly state the name and position of each person, and any conflict of interest that they might have (if they worked in a former administration or are if they advise a political party, for example). We don’t use anonymous sources or off the records. We also use documents and studies as evidence in our pieces. In those cases we provide links to the complete document. When we use databases, these are also linked so that anyone can corroborate their validity.
We take special care of balancing our sources in each piece, but we also have an internal system to monitor that our sources are balanced in the long term. For this, we fill (confused about “fill”) information in each piece about the specialists so that we can then analyze how many of them come from private universities, public universities or NGOs, among others.