Sirichai’s career in justice

After he was recruited as a judge, Sirichai’s career grew over the years, starting from serving as a judge and a chief judge for several provincial, regional, and central courts, including Nakhon Sri Thammarat, the Civil Court, and the Appeals Court. 
He also served as Court President for the Regional 5 Juvenile and Family Court, a judge and a chief judge at the Supreme Court, before taking a senior post of the fourth Vice Court President of the Supreme Court, and eventually the Appeals Court President in 2015, which is only second to the Supreme Court President.
Sirichai was also appointed to serve as an executive member for the Court of Justice’s executive committees, including the Supreme Court’s judicial commission sub-panel, the executive judicial commission, as well as the judicial commission at the Supreme Court and the Appeals Court.
While serving as a senior judge, Sirichai was appointed to the Supreme Court's Criminal Division for Holders of Political Positions to rule on several high profile cases. These included the malfeasance charge against former Prime Minister Somchai Wongsawat and four defendants over a case concerning a violent crackdown against People’s Alliance for Democracy protestors in 2008, and the negligence charge against former Prime Minister Yingluck Shinawatra over alleged corruption in the rice mortgage scheme.
While serving as Appeals Court President, he introduced a new approach to reduce cases accumulating at the court. In 2016, the Appeals Court under his lead, won the award of excellence among high courts.