(Wydział Prawa i Administracji UAM, 2006) Gutowski, Maciej
The paper deals with the main provision of art. 58 § 1 of the civil law code concerning invalidity
of a legal act. Since Poland’s accession to the European Union, the scope of that the provision has
significantly broadened, and the catalogue of the sources of law provided in art. 87 of the Constitution
can no longer be considered exhaustive. The paper analyses invalidity of a legal act arising
from the fact that its contents or purpose are contrary to the Community law.