Act as a communication network. Provide emergency communication. They should know whom to contact and how if assistance is needed. Maintain the internal self-discipline of the action. Peacekeepers facilitate the movement and action of large groups of people by directing traffic, encouraging people to walk and not run and providing information to the group.
Peacekeepers are also prepared to handle conflicts when they arise.
Act as mediators between authorities and demonstrators. It is very important to have peacekeepers as buffers between law enforcement authorities, possible counter-demonstrators, and demonstrators. Peacekeepers have primary responsibility for participants in the action, but they should be fully prepared to protect legal authorities and other non-participants from demonstrators if necessary. Be warm, friendly, and helpful. The tone of the demonstration depends on how you respond to your fellow witnesses, police, the media, and others.