He continued his studies at the University of Göttingen in Germany, completing the Magister Juris programme in 1994 with a thesis about the clausula rebus sic stantibus in administrative contract law.
His thesis about the development of the legal doctrine of the "administrative law contract" (Die Entwicklung der Dogmatik des verwaltungsrechtlichen Vertrages)[2] was graded summa cum laude.
In late-February 2012, Worachet was assaulted by two men on the parking lot of Thammasat University's downtown campus, who later declared they disagreed with his campaign for a change of article 112.
[6] After the Thai coup d'état of 22 May 2014, Worachet was summoned to report to the military junta National Council for Peace and Order (NCPO), but failed to do so within allotted time, as he was abroad.
[3] His promotion to the professorship was endorsed by the Civil Service Commission on 27 October 2016[8] and received the royal assent from King Rama X on 5 April 2017, with retroactive effect as from 12 June 2013.