This paper analyzes the application of the presumption of innocence principle in Polish law and international law. According to this principle, the accused is presumed innocent until his or her guilt is proven and established by a final judgment. This principle is one of the basic guarantees of the protection of the rights of the accused, and - which should be particularly emphasized - is the only praesumptio iuris that has acquired the status of a procedural principle of constitutional rank in modern criminal proceedings. Unfortunately, the theory and practice regarding compliance (by politicians, individuals not holding public office, bloggers, content creators and authors of comments on social media, public authorities, and the media in general) with the presumption of innocence principle are often very different. The fact that not only politicians, but also TV and radio reporters often make assumptions about the outcome of an unfinished trial in their feature articles, reports, and columns is unacceptable. As a result, the presumption of innocence principle often takes second place to the medieval principle of presumption of guilt of the accused. The paper takes into account the legislation in force as of June 1, 2025.