Constitution
Hanover has an evolving English stle constitution that involves multiple documents. The foundation of the nation rests upon law abiding citizen. The powers of the Crown are absolute, but this is a quirk of history that will soon be fixed once again returning Hanover to her rightful heritage as a constitutional monarchy.
Ministers are the people who execute most of the power in the Kingdom. They are responsible to see that the laws of Hanover are enforced as well as keeping the Kings peace. His Majesty presides over the Privy Council and Cabinet and governs from the model of the Elizabetha Era England using the ministers to actually enact all the decisions made in the council. The Prime Minister is the head of the King's Covernment.
An Absolute Monarchy? Absolute, yes. Despotic, no. Hanover, as a non-territorial nation, is not subject to the same abuses as landed nations of the past.
Parliament
Hanover has a parliament where the needs of the people can be addressed by government. But do not think the people have no voice. His Majesty is always open to the petitions of his people, and the ministers are very responsive to the needs of the people.