Jreissati is a former member of the Constitutional Council. He became a registered member of the Beirut Bar Association on 8 November 1974. He is the former member of the Lebanese Constitutional Council (1977–2009). In 2010, Jressati was one of the legal advisors who contributed to the drafting of the new Syrian constitution. He was appointed labor minister in
Najib Mikati's
cabinet on 24 February 2012, replacing
Charbel Nahas in the post. Jreissati was nominated by the Free Patriotic Movement leader and member of parliament
Michel Aoun. After his appointment, Aoun announced that Jreissati became a member of the
Change and Reform bloc, represented by ten ministers in the cabinet composed of thirty ministers. Jreissati's term ended on 15 February when Sejaan Azzi was appointed labor minister. On 18 December 2016 Jreissati was named the minister of justice in the
cabinet led by Prime Minister
Saad Hariri. He was in the post until 31 January 2019 when he was named the state minister for presidential affairs. Jreissati was in office until January 2020.
Business activities From 1993 to 1997 Jreissati was a member of the directors' board of At Tamwil Bank. In 2008, he was named as a member of the board of directors of Emirates Lebanon bank. ==Personal life==