The paper shows that the police services need to be aware of possible challenges especially in the context of non-military threats and prepare appropriate plans of action to deal with them. The article indicates the importance of personnel training and preparation for the purpose of combating emergency situations and dealing with public safety. It also highlights the usefulness of simulation as a method of deepening the knowledge and gaining practical skills in analyzing the risk (risk analysis) in complex situations. The article also indicates the requirements to prepare commanders how to identify risk factors and how to describe and evaluate them. It also presents the role of scenario planning as a method of commanders activity. The next issue described in the article is connected with command principles, legal solutions and experience. Author pointed fundamental principles of command for instance: the principle of unity of command, continuity, integration, decentralization and mutual trust and understanding of the commander and his staff. The paper shows necessity of application modern methods and techniques of training for example simulation. It enable future commanding officers to become comprehensively familiar with principles of command and during simulations to prepare them to put these principles of command into practice.