his arrest, he was sentenced to 10 months in prison under the breach of the National Security Act on 15 February 1999. He was pardoned on 15 August. Legal career Park had passed the 1st National Bar Examination and was qualified for the bar in 2012. The next year, he started his legal career, starting as a town lawyer in Gochon-eup, Gimpo. He subsequently joined a law firm named LawTec, where he used to work for a year. Then, he moved to Changjo and was involved until 2016. As a lawyer, he was also a legal adviser in various governmental organisations, including Nowon District Office, Seongdong District Office, Seoul Metropolitan Facilities Management Corporation (now Seoul Facilities Corporation) and the Seoul Metropolitan Council. In 2014, following the Lance Corporal Yoon case, where the victim Lance Corporal Yoon was bullied and murdered, Park pled the family of the late Yoon. Along with Chung Yeon-soon, he urged that the defendants should be punished for reckless homicide. On 30 October, the defendants had been sentenced from 15 to 45 years of imprisonments, but for accidental mortality instead of homicide. Park criticised the sentence, citing "they must be punished for murder on appeal". Homicide was applied to the defendants during an appeal on 9 April 2015. On 22 June 2019, Park opened his own law firm in Gurae-dong, named Gimpo and Together With Park Sang-hyuk Law Firm (김포와더불어 박상혁 법률사무소). Political career Park has also been built ties with politics prior to his legal career. At the 2004 election, he helped Lee In-young, the then Uri candidate for Guro 1st constituency. Following the Uri's victory in the election amid the impeachment of the then President Roh Moo-hyun, he became a secretary to Kim Geun-tae, the then parliamentary leader of the party. Being his secretary for a year, he then also became a secretary to Lim Chae-jung, who served as the Speaker of the National Assembly from 2006 to 2008. In 2016, he worked as the political adviser to the then Mayor of Seoul Park Won-soon. The following year, after Moon Jae-in was elected the President, he was appointed the Executive Officer for Judicial Affairs of the Office of the President. He announced his resignation on 7 May 2019, in order to run for the 2020 election. 2020 election On 16 December 2019, Park announced he would run for Gimpo 2nd constituency in the 2020 election