If any critical change or addition is suggested from his own headquarters, the LNO should obtain these in time to prevent amendment or revision of orders by either headquarters. The dispatching headquarters has certain responsibilities for its liaison teams. The commander and staff sections must know the identities of their liaison team. Frequently, subordinate units are tasked to provide liaison teams whose identities and qualifications are unknown to the headquarters relying on their abilities and information. During this meeting the liaison team should receive a briefing on its mission, the situation, and the unit to which it is being sent.
Radio is normally the quickest and easiest means of communication.
However, give consideration to the fact that the opening and closing of liaison radio nets are positive intelligence indicators. Historically, these nets have proven to be a lucrative source of information for an enemy. As a minimum, LNOs must be thoroughly grounded in their own unit's command and staff procedures, doctrine, organization, capabilities, and communications equipment and procedures. LNOs must have the same information on the allied headquarters to which they will go. They must also know the purpose of liaison, the liaison system in effect, reporting methods, records and documents they are to maintain, their mission, and how they should conduct themselves.