The adversarial principle is merely the name of a specific type of organizing process, not a specific Directive of criminal proceedings. The adversarial principle is uniformly recognized as non-codified directive, according to which the criminal process is conducted in the form of equal sides dispute before the impartial court. The adversarial principle in criminal proceedings is something other than adversarial in civil proceedings. The adversarial principle was exposed in the course of work on the revision of the Code of criminal proceedings. The creators of the reform emphasized that Article 167 § 1 of the Code of criminal proceedings differently than it did before, sets out the rules of proof, giving this task in the hands of the parties, leaving only the court admissibility of evidence, and reducing the possibility of taking evidence by the court to exceptional cases justified special circumstances. The creators of the reform emphasized that Article 167 § 1 of the Code of criminal proceedings differently than it did before, sets out the rules of taking of evidence, giving this process to the parties, leaving only the admissibility of evidence to the court, and reducing the possibility of taking evidence by the court to exceptional cases justified by special circumstances. Will be changed the rules for transfer of the court materials from preliminary proceedings. Another important issue is the systematization of the list of evidence, in accordance with the modified Article 333 § 1 of the Code of Criminal Procedure and solutions for planning of court hearings. May cause discussions restriction the possibility of taking the initiative of the evidence by the court. The changes enforce proactive stance of the accused, even though he should be able to take advantage of the „right to silence”. Militate against the principle of adversarial problems brought to light on the background of the appeal proceedings. You can express its concern that the adversarial principle in the present approach will detrimental to the presumption of innocence, leading to a model of „proceedings for the rich”. These changes will force to remodel the psyche of judges who feel guilty persons determining cases of dispute run by the parties, not the players involved who have the task of replacing the prosecutor.