The administrative work of criminal proceedings is a rich source of information on the life of the population of a given region. Although many regulations were issued as early as the 1850s, they continued to be valid during the First Czechoslovak Republic. Changes in society and the increasing pace of life also forced an acceleration in criminal proceedings. In 1936, so-called block criminal proceedings were introduced by the government. During the Second World War, the form of accounting for criminal activity forced new regulations. An examination of documents of the former District Office of Humpolec revealed various types of documents that were typical for this kind of administrative work. Although the most frequently used term is criminal register, the meaning of it was not always clear.