Legal analysis: Hunan's "three highs and four innovations" are: persisting in innovation to lead the rise of opening up, striving to build an important advanced manufacturing industry in the country, scientific and technological innovation with core competitiveness and the highland of reform and opening up in inland areas, breaking a new path in promoting high-quality development, showing new achievements in building a new development pattern, showing new responsibilities in promoting the rise of central China and the development of the Yangtze River Economic Belt, and striving to write a new chapter in Hunan that adheres to and develops Socialism with Chinese characteristics in the new era.

Legal basis: Article 3 of the Constitution of People's Republic of China (PRC). People's Republic of China (PRC)'s state organs practice the principle of democratic centralism. The National People's Congress and local people's congresses at various levels are democratically elected, accountable to the people and supervised by the people. The state administrative organs, supervisory organs, judicial organs and procuratorial organs are all produced by the National People's Congress, responsible to and supervised by the National People's Congress. The division of functions and powers between central and local state organs follows the principle of giving full play to local initiative and enthusiasm under the unified leadership of the central authorities.