In 2004 till 2011 he worked as a Researcher at the Paris High Institute of Law in Criminal Law - International Business Law - Labor Law. In 2009, the first lawyer in the history of the German judiciary gets a decision from the Criminal Court in Dresden (Germany) to plead in Arabic in the case of martyr Marwa al-Sherbini. In 2009, he conducted specialized studies on marriage between different nationalities and the resulting effects, in the French law school.