The mechanism for protecting office information in the field of defence cannot be complete without ensuring the confidentiality of information when considering legal disputes, including disputes about a state defence order. The article substantiates the point of view about the possibility of moving to a closed trial when considering disputes in which information of limited access appears at the discretion of the court. The analysis of the limitations of procedural rights that result from the transition to the consideration of the case in a closed court session indicates the futility of waiting for the relevant petition from interested persons, which may lead to a violation of the priority of preserving official secrets in the field of defence. A negative assessment is given to the illegal deprivation of the participants in the process of the right to receive an audio protocol of the court session.