Jeong Hyeong-sik
정형식
Justice of the Constitutional Court of South Korea
Incumbent
Assumed office December 18, 2023
Appointed by	Yoon Suk Yeol
Preceded by	Yoo Nam-seok
Personal details
Born	(1961-09-02) 2 September 1961 (age 63) Yanggu, South Korea
Education	Seoul National University (LL.B., LL.M.)
Korean name
Hangul	정형식
Hanja	鄭亨植
Revised Romanization	Jeong Hyeongsik
McCune–Reischauer	Chŏng Hyŏngsik

Jeong Hyeong-sik (Korean: 정형식; born September 2, 1961), also romanized as Cheong Hyungsik,^[1] is a South Korean jurist who serves as a justice of the Constitutional Court of South Korea. He was nominated by President Yoon Suk Yeol on November 16, 2023, and officially appointed to the court on December 18, 2023.

Originally from Yanggu, Gangwon, Jeong graduated from the Seoul National University College of Law and 17th class of the Judicial Research and Training Institute before beginning his career as a judge for the Seongnam Branch of the Suwon District Court [ko] in 1988. For the next 35 years, he served as a judge for courts in Seoul, South Gyeongsang, Gyeonggi, North Chungcheong, and Daejeon. In 2023, he was nominated and appointed to the Constitutional Court as a replacement for Justice Yoo Nam-seok. During his tenure on the court, he has been classified as a conservative judge.

Jeong was born on September 2, 1961, in Yanggu, Gangwon.^[2][3] After graduating from Seoul High School in 1980, Jeong attended Seoul National University College of Law and graduated in 1985.^[2] In the same year, Jeong passed the 27th bar examination and postponed his enlistment.^[2][4] In 1986, Jeong was exempted from military service after being diagnosed with a bone infection.^[4] Jeong then graduated from the 17th class of the Judicial Research and Training Institute in 1988.^[5] In 1990, Jeong completed an LLM program at Seoul National University.^[2]

Upon graduation from the Judicial Research and Training Institute, Jeong was hired as a judge for the Seongnam Branch of the Suwon District Court [ko] in March 1988.^[2][5] Jeong then worked as a judge for the Seoul Family Court [ko] in 1990 and the Seoul Civil District Court [ko] in 1991 before heading south to work at the Jinju Branch of the Changwon District Court [ko] from 1992 to 1994.^[2] In 1995, Jeong returned to Seoul and worked at the Seoul District Court [ko] before transferring to the court's eastern branch [ko] in 1997.^[2] In 1999, Jeong returned to the Seongnam Branch of the Suwon District Court before joining the Seoul High Court [ko] in 2000.^[2]

From 2001 to 2003, Jeong worked as a research judge for the South Korea Supreme Court's criminal investigation division.^[2][5] Jeong then joined the Cheongju District Court [ko] as a chief judge in 2003 and transferred to the Suwon District Court [ko] in 2005.^[2] From 2007 to 2010, Jeong served on the Seoul Administrative Court [ko] as a chief judge and was evaluated as an outstanding judge by the Seoul Bar Association in 2009.^[2][6] In 2010, Jeong returned to the Suwon District Court as the chief of the Pyeongtaek Branch [ko].^[2] Jeong then became a chief judge for the Daejeon High Court [ko] in 2011 and the Seoul High Court in 2012.^[2]

During Jeong's time on the Seoul High Court, he served as an acting chief judge for the Seoul Administrative Court in 2014 and was evaluated as an outstanding judge by the Seoul Bar Association in 2015.^[2][5] In 2019, Jeong joined the Seoul Rehabilitation Court [ko] as a chief justice where Jeong promoted the development of simplified bankruptcy procedures, the creation of a practical counseling center, and the implementation of remote video trials.^[2][7] In 2021, Jeong joined the Suwon High Court [ko] as a chief judge before returning to the Daejeon High Court as a chief justice in 2023.^[2]

On November 12, 2009, Jeong ruled that President Lee Myung-bak's dismissal of Jeong Yeon-ju [ko], the head of KBS, was improper.^[8][9] Jeong Yeon-ju, who was first appointed as president of KBS in 2003, was fired by President Lee on August 11, 2008, after requests for his dismissal were made by the Board of Audit and Inspection and KBS's own board of directors.^[9] Jeong Yeon-ju then filed a lawsuit against the government challenging the dismissal in the Seoul Administrative Court.^[8]

Chief Judge Jeong ruled in Jeong Yeon-ju's favor, finding President Lee's dismissal was an illegal abuse of discretion.^[8] While Jeong acknowledged Jeong Yeon-ju had made errors in managing KBS, Jeong determined the dismissal was procedurally improper because "former President Jeong was not notified of the disciplinary action in advance or given the opportunity to express his opinion."^[8] In 2012, the South Korea Supreme Court confirmed Jeong's ruling.^[9]

In a retrial held by the Seoul High Court on July 31, 2013, Jeong ruled Sungkonghoe University professor Cho Hee-yeon [ko] was not guilty of violating Emergency Measure No. 9 [ko] during the presidency of Park Chung Hee.^[7][10] In 1978, Cho, who was then a student at Seoul National University, was indicted for creating and distributing leaflets that criticized the Yushin Constitution and sentenced to two years in prison.^[10] In finding Cho not guilty, Jeong noted the emergency measures were unconstitutional because "it is clear that they were intended to suppress the people's resistance to the Yushin regime."^[11] Jeong went on to state "the state's emergency powers should be exercised within the minimum necessary limits when the country is in a grave crisis, but the situation at the time the emergency measures were declared did not correspond to a grave national crisis as an emergency, so it lacked the requirements stipulated in the Constitution."^[11]

In an appeal trial held by the 6th Criminal Division of the Seoul High Court on September 16, 2013, Jeong convicted former Prime Minister Han Myeong-sook of receiving illegal political funds and sentenced Han to two years in prison along with a fine of 883 million won.^[12] In July 2010, Han was indicted on charges of receiving 900 million won from Hanshin Construction CEO Han Man-ho during the 2007 presidential primaries.^[12] While Han Man-ho had made a statement to the prosecution that implicated Han Myeong-sook, Han Man-ho changed his testimony during the first trial and claimed "I have never given any political funds to Prime Minister Han Myeong-sook. Prime Minister Han is being falsely accused because of me, a cowardly and mean person."^[12][13]

At the conclusion of the first trial, the court found Han Myeong-sook not guilty of the charges on the grounds that Han Man-ho's initial statement to the prosecution lacked credibility.^[13] The court's ruling was also based on the findings that Han Man-ho and Han Myeong-sook were not close enough to exchange money, that the ledgers submitted as evidence may have been falsified, and that the circumstance of Han Myeong-sook receiving the money on the street on broad daylight did not appear plausible.^[13]

During the appeal trial, Jeong disagreed with the first court's finding and found Han Man-ho's initial statement to the prosecution to be credible.^[12] Jeong also found Han Man-ho and Han Myeong-sook were in a close relationship as relatives and friends.^[12] In imposing a sentence of two years in prison and fine of 883 million won, Jeong stated the nature of crime of was serious and that Han Myeong-sook lacked remorse.^[12] In a statement following the ruling, Han Myeong-sook maintained her innocence, claimed Jeong's ruling was politically motivated, and promised to appeal the verdict while her party, the Democratic Party, criticized the ruling as an "obvious political verdict."^[12][14] In 2015, the Supreme Court confirmed Jeong's decision.^[14]

On February 5, 2018, Jeong, while serving as chief judge of the Seoul High Court's 13th Criminal Division, reduced the sentence of Samsung executive Lee Jae-yong from five years to two years and six months with the sentence suspended for four years.^[15] The initial five-year sentence had been imposed by the Seoul Central District Court after they convicted Lee of perjury, embezzlement, and bribery in August 2017.^[16] The conviction was based on allegations that Lee had offered $30 million USD in bribes to President Park Geun-hye and Choi Soon-sil in exchange for securing their support in Lee's bid to strengthen control over Samsung.^[17]

In reducing Lee's sentence, Jeong overturned the district court's rulings on some of the bribery charges and stated "it is difficult to acknowledge that there was a comprehensive issue of Samsung's succession process."^[15] Jeong also determined that "Chairman Lee Jae-yong was a victim of coercion by former President Park Geun-hye."^[13] Following the ruling, Jeong participated in an interview with the Chosun Ilbo where Jeong defended the court's decision, stating "The legal principle was a clear area that could not be compromised and was not a matter for concern."^[18]

In the aftermath of Lee's appeal trial, Jeong faced criticism from the legal community and members of the public who believed the sentence imposed on Lee was too lenient.^[19][20] A petition on the Blue House National Petition Bulletin Board that requested a special audit of Jeong gained over 200,000 signatures within three days of its posting.^[14] On August 29, 2019, the Supreme Court overturned the verdict, stating the court "misunderstood the law."^[21]

On November 16, 2023, President Yoon Suk Yeol nominated Jeong as the replacement for Justice Yoo Nam-seok, who retired from the Constitutional Court on November 10, 2023.^[22] On December 12, 2023, the National Assembly held a hearing on Jeong's nomination.^[23] During the hearing, Jeong evaluated the increase in impeachment proceedings as "the process of the Constitution coming to life" while declining to comment on specific impeachment cases pending before the Constitutional Court.^[23]

When asked about Han Dong-hoon's criticism of the Constitutional Court as minister of justice, Jeong stated "you can logically criticize a decision, but I don't think it's appropriate for the person involved, especially the Minister of Justice, to immediately say, 'It's wrong.'"^[23] On the issue of the legalization of same-sex marriage, Jeong stated "recognizing homosexuality personally and socially and institutionalizing same-sex marriage are separate issues."^[24] Jeong also remarked that "homosexuality is a realm of the right to self-determination, but it can be restricted to the extent necessary."^[24]

When questioned about his sentencing of Lee Jae-young, Jeong initially stated he still believed Lee was a victim of President Park Geun-hye but respected the Supreme Court's decision to reverse his verdict.^[23] Jeong then clarified later in the hearing that "I don't think he's a victim" and stated "in terms of legal judgment, although my judgment was not accepted by the Supreme Court, I do not think it was wrong."^[23]

Jeong was questioned about receiving official passports for his children to travel with him to Europe in 2003 as part of an international training program when it was not the policy to issue official passports for children on short-term business trips.^[23] While Jeong acknowledged that the issuance of passports would be inappropriate, he explained he was unsure why the passports were issued and that he paid for all of the expenses.^[23] Jeong also was questioned about making six million won in donations to a North Korean defector support group from 2018 to 2022 that had conservative leanings.^[23][25] In response, Jeong stated "if it is an organization with clear colors, I think I (as a constitutional judge) should not do that."^[23]

On December 18, 2023, the National Assembly's Legislation and Judiciary Committee adopted a personnel hearing report that contained split opinions on whether Jeong was qualified for appointment to the Constitutional Court.^[26] While legislators from the ruling People Power Party deemed Jeong to be qualified, legislators from the opposition Democratic Party found Jeong to be unqualified based on his prior rulings in the Lee Jae-yong case.^[27] On the same day, Jeong received his official letter of appointment from President Yoon and attended an inauguration ceremony at the Constitutional Court on December 19, 2023.^[28]

When Jeong, who was classified as a conservative justice, joined the Constitutional Court in December 2023, the court was reorganized as a conservative-moderate majority court for the first time since 2019.^[29] Since joining the court, media outlets have consistently classified him as a conservative.^[30][31]

On May 30, 2024, Jeong joined a 5–4 majority of the Constitutional Court in dismissing the impeachment of Ahn Dong-wan, a deputy chief prosecutor from the Busan District Prosecutors' Office [ko].^[32] The National Assembly had initially impeached Ahn for the retaliatory prosecution of a Seoul official.^[32] Although five of the court's nine justices agreed to dismiss the impeachment, they were divided on their reasoning. While Justices Lee Jong-seok and Lee Eun-ae determined any violation of the law was not sufficiently serious to justify dismissal, Jeong joined Justices Lee Young-jin and Kim Hyeong-du in ruling that Ahn's actions did not constitute an abuse of power in the first place.^[32]

On December 16, 2024, Jeong was randomly selected through an electronic allocation system to serve as the presiding justice for President Yoon's impeachment trial.^[33]

On February 28, 2024, Jeong was part of a 6–3 majority of the Constitutional Court that held the Medical Act's ban on revealing the sex of a fetus until the 32nd week of pregnancy was unconstitutional.^[34] The court held restricting gender disclosure was no longer reasonable as the preference for male children has declined as evidenced by South Korea's sex ratio at birth reaching the normal range in 2014.^[34]

On May 30, 2024, Jeong joined Justices Lee Eun-ae and Jeong Jeong-mi in dissenting from the Constitutional Court's decision that found the Comprehensive Real Estate Tax Act to be constitutional.^[35] The majority found that the tax provisions had a legitimate purpose of promoting price stability and were not excessive.^[35] In dissent, Jeong and the other justices argued the tax was unconstitutional because it was excessive as it imposed a higher tax rate on the owners of two houses in the regulated area without regard for whether the properties were owned for purposes not involving real estate speculation.^[35]

On August 29, 2024, Jeong joined a unanimous majority of the Constitutional Court in ruling the Carbon Neutrality Framework Act's failure to set a greenhouse gas emissions reduction target after 2031 was unconstitutional because it failed to protect basic rights.^[36] While Jeong joined four justices in also finding the Act's emissions reduction targets for 2030 to be inadequate and unconstitutional, they lacked the six votes required to overturn this portion of the Act.^[36]

Jeong is married to the youngest sister of Park Seon-yeong [ko],^[37] the current chairwoman of the Truth and Reconciliation Commission,^[38] and has two sons.^[4] He is also the second cousin of Gangwon Governor Kim Jin-tae^[39] and brother-in-law of former Supreme Court Justice Min Il-young [ko].^[7]

• List of justices of the Constitutional Court of Korea