- It can declare and define the boundaries of the political community.
- It can declare and define the nature and authority of the political community.
- It can express the identity and values of a national community.
- It can declare and define the rights and duties of citizens.
- It can establish and regulate the political institutions of the community.
- It can divide or share power between different layers of government or sub-state communities.
- It can declare the official religious identity of the state and demarcate relationships between sacred and secular authorities.
- It can commit states to particular social, economic, or developmental goals.