It means “for this purpose”. It’s a temporary position created for a specific purpose. An Ad-hoc is specifically hired to argue a particular key point in which the person is expert.
The definition of aforesaid is something that was talked about before already said, referred to or recited
Dichotomy of Power studies the long term of the nation-state because of the world's basic political organization and therefore, the foundation of recent diplomacy.
What Cannot be done directly Cannot be done indirectly