Answer:
Asking such a general question about each of the many institutions that constitute any community is begging for a lifetime of research. First, in any single community, many institutions contribute to the maintenance of peace and order, too many to enumerate fully even in a single community. Second, each local community is equipped with many distinct institutions that are not necessarily shared by other communities. Finally how communities cooperate in larger grouping like U.S countries, states and national institutions varies widely. Just look at the number of different ways the state are responding to the coronavirus pandemic.
