The opening of the 21st Wrocław Symposium on Questioned Document Examination will be a solemn moment when we will welcome our guests and officially begin the proceedings. We invite you to participate in the opening ceremony, which will take place in the 2D hall name of prof. Józef Świda, in building „D” of the Faculty of Law, Administration and Economics of the University of Wrocław, located at Uniwersytecka street 7-10 in Wrocław city. The ceremony will start at 10:00 a.m. and will be an opportunity to officially welcome guests, and conference participants and introduce the speakers, as well as indicate the main thematic trends of the speeches and give the floor to experts.