Omnibus laws do not breach the principle of legal certainty per se. Indirect unconstitutionality on the grounds of basic State legislation infringement: Commentary on Constitutional Court’s Judgement 161/2019, of December 12, on appeal of unconstitutionality 878/2019 (BOE num. 10, of January 11, 2020). Journal of the Cortes Generales, n. 108, p. 377–396, 12 Jun.2020.