In 1982 he left his job in the Norwegian Broadcasting Corporation, and was hired in the Norwegian Agency for Development Cooperation. In 1992 he was hired in the Norwegian People's Aid, becoming secretary general in 1994.[1] He left in 2001, and has since worked as a freelance writer, lecturer and advisor. Among other topics, he has advised the Norwegian People's Aid about democracy building in Sudan.[3]
^ abcdef"Halle Jørn Hanssen 60 år 18. februar" (in Norwegian). Norwegian News Agency. 29 January 1997.
^Eilertsen, Jonas (14 January 2009). "Tidligere leder i Unge Venstre" (in Norwegian). Young Liberals of Norway. Archived from the original on 27 July 2011. Retrieved 23 January 2009.
^ abc"70 år 18. februar: Halle Jørn Hanssen" (in Norwegian). Norwegian News Agency. 12 February 2007.