The requirements on the future military command and control system and its technical architecture differ somewhat from the available commercial technology. The command and control system should be flexible in the meaning of dynamic, decentralised, interoperable and mobile. This means that different methods for trust and security policy management must be utilized. This is especially important when concerning the different forms of mobile code. The outline discussed in this report shows how a special component, that acts like a trusted guard, is inserted in each node in the net This component decides which other components it should trust, decides which policies are in force and controls the traffic between the node and network.