Emmanuel has authored a number of articles about these topics. In 2005 and 2007 he published a book on professional immigration, Les cadres étrangers [Foreign Executives] (Kluwer). In 2003 he founded Lexial Val d’Europe, a not-for-profit group that examines issues related to international mobility.
Emmanuel is recognized since 2016 by the Brussels Bar Association with the title of Specialist in Immigration Law and in Criminal Law. He taught international human resources law at the Institut d’administration des entreprises (IAE) in Lille. He is a member of the Swiss Business Council for Belgium and Luxemburg.
In Brussels he leads a LREM committee (movement created by French President Emmanuel Macron). He worked with French former Ministry of Foreign Affairs Michel Barnier within the framework of “Nouvelle République” as well as Senator Jean-Marie Bockel (“Gauche Moderne”). In 2008 he participated in drawing up a report for MEP Alain Lamassoure titled “Citizens and European law enforcement”, submitted to President Sarkozy.