This year,  Docudays UA's program includes film "Bellingcat: The Truth in the Post-Truth World". This film explores the possibilities of working with open sources, immersing viewers in the unique world of the team of "citizen journalistic investigations", known as Bellingcat. The Bellingcat team is investigating high-profile cases (from the MH17 crash to poisoning a Russian spy in the United Kingdom), seeking the truth and fighting for journalistic honesty in times of fake news and controversial facts. What is the evidence in open source? How can social networks serve as evidence of a violation of international humanitarian law? Is this evidence relevant in International Courts? What is happening in this area in Ukraine? What does NOT hide the Network?