Supreme Court allows appeal for invalidating a voluntary act caused by a trick regarding motivational reasons under Art. 86 KC.

The Supreme Court of Poland allowed the cassation appeal against a lower court's dismissal of a teacher's claim to return to work. The teacher argued she entered an inactive status due to a promise of future employment, which was a trick by the school director. The court found that lower courts incorrectly treated this as a mistake of law rather than a trick inducing a mistake in the motivational sphere. Consequently, the Supreme Court ordered a retrial with additional evidence gathering to determine if the director's promise constituted a trick.