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Partner

Sang Hyun LEE

Criminal Defense (Investigations)

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Sang Hyun Lee is a Partner specializing in criminal defense at Lee & Ko since 2024. Prior to this role, he dedicated nearly 20 years to the Prosecution Service, with his last career highlight as the Chief Prosecutor of the Gyeongju Branch of the Daegu District Prosecutors’ Office.

During his tenure at the Prosecution Service, Mr. Lee held various positions across different regional offices, starting as a Deputy Senior Prosecutor of the Public Security Department at the Seoul Central District Prosecutors’ Office and advancing to a Senior Prosecutor of the Public Security Department at the Ulsan and Daejeon District Prosecutors’ Offices, as well as the Public Security Division II at the Seoul Central District Prosecutors’ Office. As a Certified Class 2 “Blue Belt” Prosecutor in Labor accredited by the Supreme Prosecutors’ Office since 2021, he has been hailed as one of few professionals with excellence specializing in serious accident, labor, election, and political finance matters.

In addition, Mr. Lee has extensive experience and expertise in the fields of anti-corruption, public corruption, and violent crime investigations, including corporate-related fraud, embezzlement, breach of trust, violent crimes involving drugs, and public corruption matters, accumulated through his decade-long career working as a Prosecutor of the Special Crime Investigation Department at the Ulsan District Prosecutors’ Office, the Violent Crime Investigation Department at the Seoul Central District Prosecutors’ Office, and as a Senior Prosecutor of the Criminal DivisionⅤ at the Daejeon District Prosecutors’ Office dedicated to special and violent crimes and public security investigations, as well as the Criminal Division III at the Seoul Western District Prosecutors’ Office dedicated to violent crime investigations.
Representative Cases
[Corporate Criminal Defense · Special Investigations]
Cases involving breach of trust of executives and employees of major public corporations
Numerous corruption cases involving high-ranking public officials
[Labor & Employment · Occupational Safety · Serious Accidents, etc.]
Numerous cases of serious industrial accidents at large companies, public institutions, etc.
Cases involving violations of the Act on the Protection of Temporary Agency Workers
Numerous cases involving unfair labor practices, labor disputes, etc. at large companies
[Election · Political Finance]
Numerous cases involving violations of the Public Official Election Act by officials in local governments, superintendents, and members of the National Assembly
Numerous cases involving violations of the Public Official Election Act by high-ranking officials, including members of the State Council
Cases involving violations of the Act on Elections Entrusted by Public Organizations by the heads of cooperatives
[Construction · Real Estate]
Cases involving fraud and misappropriation of project finance loans in connection with apartment development projects developed by large construction companies
Cases involving fraud, embezzlement, graft, etc. in connection with real estate development projects
[Serious Crimes Involving Drugs, etc. · Trade Secret]
Numerous cases involving drug smuggling, trafficking, and use
Trade secret leakage cases in conglomerates, public research institutes, etc.
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Education
2004 Judicial Research & Training Institute, Supreme Court of Korea
2002 Department of Urban Planning and Design, University of Seoul - LL.B.
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Work Experience
2024-Present Lee & Ko
2023-2024 Chief Prosecutor, Gyeongju Branch of Daegu District Prosecutors’ Office
2022-2023 Senior Prosecutor, Public Security Division II, Seoul Central District Prosecutors’ Office (election, political affairs)
2021-2022 Senior Prosecutor, Criminal Division III, Seoul Western District Prosecutors’ Office (violent crimes)
2021 Certified Class 2 “Blue Belt” Prosecutor (labor), Supreme Prosecutors’ Office
2020-2021 Senior Prosecutor, Criminal DivisionⅤ, Daejeon District Prosecutors’ Office (special crimes, public security affairs, violent crimes)
2020 Senior Prosecutor, Public Security Department, Daejeon District Prosecutors’ Office
2019-2020 Senior Prosecutor, Public Security Department, Ulsan District Prosecutors’ Office
2018-2019 Deputy Senior Prosecutor, Public Security Department II, Seoul Central District Prosecutors’ Office
2017-2018 Prosecutor, NIS Special Investigation TFT, Seoul Central District Prosecutors’ Office
2016-2017 Prosecutor, Jeju District Prosecutors’ Office (public security affairs, violent crimes)
2012-2016 Prosecutor, Public Security Department, NIS Special Investigation TFT, Violent Crime Investigation Department, Seoul Central District Prosecutors’ Office
2010-2012 Prosecutor, Cheonan Branch of Daejeon District Prosecutors’ Office (public security affairs)
2008-2010 Prosecutor, Special Crime Investigation Department, Ulsan District Prosecutors’ Office
2006-2008 Prosecutor, Yeongdeok Branch of Daegu District Prosecutors’ Office
2004-2006 Prosecutor, Seoul Northern District Prosecutors’ Office
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Admissions
2004 Admitted to bar, Korea
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Languages
Korean and English
Awards and Recognitions
2021 Certified Class 2 “Blue Belt” Prosecutor in Labor by the Supreme Prosecutors’ Office
2011 Model Prosecutor Medal from the Prosecutor General
2011 Commendation for Public Security from the Prosecutor General
2009 Commendation for Tracking and Recovery of Criminal Proceeds from the Minister of Justice
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