Member of South Africa’s delegation to the 1995 NPT review conference.

Chairperson of the subcommittee for "Disarmament, Arms Control, and Nonproliferation" of the Foreign Affairs Committee of the German Bundestag.

One of the drafters of the Treaty on Non-Proliferation of Nuclear Weapons.

Deputy head of the nuclear non-proliferation section of the economic department in the German Federal Foreign Office.

Expert member of the German delegation to the NPT review conference.