One country, two systems in the context of "Judicial system of China"

Hong Kong is a special administrative region of China. Situated on China's southern coast just south of Shenzhen, it consists of Hong Kong Island, Kowloon, and the New Territories. With 7.5 million residents in a 1,114-square-kilometre (430 sq mi) territory, Hong Kong is the fourth-most densely populated region in the world.

Hong Kong was established as a colony of the British Empire after the Qing dynasty ceded Hong Kong Island in 1841–1842 as a consequence of losing the First Opium War. The colony expanded to the Kowloon Peninsula in 1860 and was further extended when the United Kingdom obtained a 99-year lease of the New Territories in 1898. Hong Kong was occupied by Japan from 1941 to 1945 during World War II. The territory was handed over from the United Kingdom to China in 1997. Hong Kong maintains separate governing and economic systems from that of mainland China under the principle of one country, two systems.

Macau or Macao is a special administrative region of the People's Republic of China (PRC). With a population of about 710,000 people and a land area of 32.9 km (12.7 sq mi), it is the most densely populated region in the world.

Formerly a Portuguese colony, the territory of Portuguese Macau was first leased to Portugal by the Ming dynasty as a trading post in 1557. Portugal paid an annual rent and administered the territory under Chinese sovereignty until 1887, when Portugal gained perpetual colonial rights with the signing of the Sino-Portuguese Treaty of Peking. The colony remained under Portuguese rule until the 1999 handover to China. Macau is a special administrative region of China, which maintains separate governing and economic systems from those of mainland China under the principle of "one country, two systems". The unique blend of Portuguese and Chinese architecture in the city's historic centre has resulted in its designation as a UNESCO World Heritage Site in 2005.

The handover of Hong Kong from the United Kingdom of Great Britain and Northern Ireland to the People's Republic of China occurred at midnight on 1 July 1997. This event ended 156 years of British rule, dating back to the cession of Hong Kong Island in 1841 during the First Opium War.

Hong Kong was a colony of the British Empire from 1841, except during the Japanese occupation of Hong Kong from 1941 to 1945. Its territory expanded after the First Opium War with the addition of the Kowloon Peninsula and Stonecutters Island in 1860 and the New Territories in 1898 under a 99-year lease. The 1984 Sino–British Joint Declaration set the terms of the 1997 handover, under which China pledged to uphold "one country, two systems" for 50 years. Hong Kong became China's first special administrative region, followed by Macau in 1999 under similar arrangements. With a population of about 6.5 million in 1997, Hong Kong made up 97 percent of the population of all the British Dependent Territories and was Britain's last major colony.

Law enforcement in the People's Republic of China consists of an extensive public security system and a variety of enforcement procedures. Along with the courts and procuratorates, the country's judicial and public security agencies include the Ministry of Public Security (MPS) and the Ministry of State Security (MSS), with their descending hierarchy of departments, bureaus (局, "Jú"), subbureaus (副局, "Fù jú"), and stations (所, "Suǒ").

Hong Kong and Macau have separate law enforcement agencies, different legal systems, and are classified as separate jurisdictions under the one country, two systems framework. However, the Hong Kong Police Force (HKPF) and Public Security Police Force often cooperate with the mainland MPS on cases involving cross border crime.

The Boundaries of Hong Kong, officially the Boundary of the Administrative Division of the Hong Kong Special Administrative Region of the People's Republic of China (Chinese: 中華人民共和國香港特別行政區行政區域界綫), is a regulated administrative border with border control in force under the One country, two systems constitutional principle, which separates the Hong Kong Special Administrative Region from mainland China, by land border fence of 30 km (19 mi) and maritime boundary of 733 km (455 mi), enforcing a separate immigration and customs-controlled jurisdiction from mainland China.

The boundaries of Hong Kong are patrolled and controlled by the Hong Kong Police Force and its Marine Region and the Immigration Department at land and sea. The land boundary also includes a buffer zone, known as Frontier Closed Area.

The People's Republic of China (PRC) is a one-party state ruled by the Chinese Communist Party (CCP). Despite this, eight minor political parties subservient to the CCP exist. The PRC is officially organized under what the CCP terms a "system of multi-party cooperation and political consultation under the leadership of the CCP," in which the minor parties must accept the leadership of the CCP.

Under the "one country, two systems" principle, the special administrative regions of Hong Kong and Macau, which were previously colonies of European powers, operate under a different political system from the rest of mainland China. Both Hong Kong and Macau possess multi-party systems that were introduced just before the handover of the territories to China.

Deng Xiaoping Theory (Chinese: 邓小平理论; pinyin: Dèng Xiǎopíng Lǐlùn), also known as Dengism, is the series of political and economic ideologies first developed by Chinese leader Deng Xiaoping. The theory does not reject Marxism–Leninism or Maoism, but instead claims to be an adaptation of them to the existing socioeconomic conditions of China.

The theory also played an important role in China's modern economy, as Deng stressed opening China to the outside world, the implementation of one country, two systems, and through the phrase "seek truth from facts", an advocation of political and economic pragmatism.

Cross-strait relations (sometimes called Mainland–Taiwan relations, China–Taiwan relations, or PRC–ROC relations) are the political and economic relations between China (officially the People's Republic of China, or PRC) and Taiwan (officially the Republic of China, or ROC) across the Taiwan Strait. Due to the existing controversy over the status of Taiwan and the Chinese legitimacy question, they are also not defined as diplomatic relations by either side.

The relationship has been complex and controversial due to the dispute regarding the political status of Taiwan after the island's administration was transferred from Japan to the Republic of China in 1945, and the split between the PRC and ROC in 1949 as a result of the ROC's retreat to the island after losing the Chinese Civil War. The essential questions are whether the two governments are still in a state of civil war over One China, each holding one of two "regions" or parts of the same country (i.e. "one nation, two states"); whether they can be unified under a "one country, two systems" framework; or whether they are now separate countries (either as Two Chinas, or as "one China, one Taiwan"). The English expression "cross-strait relations" is considered to be a neutral term that avoids reference to the political status of either side.