The main goal of this master's degree thesis is to provide information about position of a judge during evidence proceeding in contentious procedure with special focus on production of evidence. In the text I often use particular decisions of the Constitutional Court of the Czech Republic and the Supreme Court of the Czech Republic to demonstrate how theoretical legal institutes are applied in practice. I have decided to choose this topic because I am very interested in judge's profession and its practical aspects especially within evidence proceeding. More reasons for my research are stated in the very first introductory part of my theses. The whole theses is composed of three parts and each of them dealing with different sides of evidence...