This article is devoted to the determinants of preparing and deploying Intervention Groups of the Prison Service. The period of several years in which the Intervention Groups of the Prison Service functioned have highlighted the need to implement solutions that enable their better preparation and more effective use in ensuring public security. In the structures of the Prison Service, the mobile strike groups have existed for a relatively short time, which consequently translates into a low level of experience of the staff that manage them. In practice, it appears that individual Regional Inspectorates of the Prison Service use different ways of managing their subordinate Intervention Groups. It is therefore necessary to introduce changes with regard to the preparation and use of all Intervention Groups of the Prison Service, which will enable their proper functioning and increase their effectiveness.