Our source policy and code of principles, made public in our website (https://colombiacheck.com/metodologia.html), stand:
“Colombiacheck will not use anonymous sources. The sources will be identified and cited. In addition, whenever possible, links to the original documents will be included in our articles so that the data is accessible. We will describe the route of the check (how it was done), to make the journalistic exercise transparent. Thus, any reader who wants to reproduce a check and find the original data, can do so and come to the same conclusion.”
“Once a statement is selected, we go to the person who said it and try to find out the original source of the data he/she used. We then try to access that original source directly and consult others to corroborate its validity and explain its relevance and impact. If this is not possible to access the original source of the data, the check is made through alternative means: documents (reports, studies, statistical compilations, public and private files) and interviews with experts. In case any of the sources used to contrast the checked data belong to a political group or has a relevant ideological position, it will be explicitly mentioned.”
Editors have the responsibility to guarantee that every check is made following these and all other principles.