The article presents the protection of foreign investment in the light of the provisions of the Agreement on Promotion and Mutual Protection of Investment concluded between Poland and the Federal Republic of Germany and in the light of Act of 14 VI 1991 on Companies with the Participation of Foreign Investors. Those regulations provide that foreign investment is subject to special protection in three different situations, i.e. in the case of expropriation, damage resulting from social unrest, etc., and in the case of withdrawal of capital. The protection of investment in the first case manifests itself through a statutory limitation of admissibility of expropriation (expropriation is allowed only in the public interest) and through ...