Basically, all policies about expansion start from the concept of regional autonomy which provides opportunities or space for regions to propose the formation of new autonomous regions with expansion policies. Of course, this is not spared from the impact of changes in the post-reform state system. According to Law No. 23 of 2014 concerning Regional Government, Regional Autonomy is the right, authority, and obligation of autonomous regions to self-regulate and manage government affairs and the interests of local communities in the Unitary State system of the Republic of Indonesia. With a solid legal foundation, the idea of territorial expansion and the establishment of a New Autonomous Region is a reasonable step. Article 18 of the 1945 Constitution became the legal basis for the division of Indonesia's territory into larger regions (provinces), which could later be further divided into smaller regions. In addition, Law No. 23 of 2014 concerning local government allows the creation of provinces throughout the Unitary State of the Republic of Indonesia. In the process of forming a new region, various factors are considered, such as economic capacity, potential, cultural and social considerations, political dynamics, population number, and area area. So that the emergence of internal obstacles is based on structural factors, namely causes related to power, formal authority, general policies, geographical problems and historical factors, from data factors, namely problems caused by data related to the completeness of the assets to be handed over, then on misperceptions among the elites of the two parties who are in trouble, interests in terms of management and potential assets, even on assets that are directly related to the income of the district original income (PAD).

The research method used in this study is juridical-empirical research. The approach used is a qualitative research approach by digging into facts in depth based on the scientific characteristics of individuals or groups to understand and reveal something behind the phenomenon by collecting the main data of the research through interviews and direct observation. Primary data is data obtained from the results of interviews with respondents and informants. Secondary data is data in the form of primary legal materials and secondary legal materials.