Like any module, Roles & permissions also have permissions can be controlled from Permissions & Roles module
The available permissions for Roles & Permissions are :

- List: Users who have this permission will be able to list the available roles & permissions
- Add Role: Users who have this permission will be able to add new roles on system
- Modify Role: Users who have this permission will be able to modify available roles
- Delete Role: Users who have this permission will be able to remove roles from the system