Prawo Zamówień Publicznych no. 4/2018 Status of a tender committee under the public procurement law – selected issues Tadeusz Kocowski, Krzysztof Horubski 10.32027/PZP.18.4.5 Legal problems with the quality of the subject of the public contract Jolanta Loranc-Borkowska 10.32027/PZP.18.4.3 The obligation to conclude a final agreement – a look at the current difficulties of interpretation Andrzela Gawrońska-Baran, Włodzimierz Dzierżanowski 10.32027/PZP.18.4.4 Fraud in public procurement procedures (Article 297 paragraph 1 of the Penal Code) – deliberations in light of the judgement of the Court of Appeal in Katowice of 16 February 2017, case file No II AKa 525/16 Ewa Plebanek 10.32027/PZP.18.4.6 The credibility of contractors holding concessions for construction works or services Andrzej Panasiuk 10.32027/PZP.18.4.7 Some controversial provisions in the draft of the new Public Procurement Law Włodzimierz Dzierżanowski 10.32027/PZP.18.4.8 The influence of obligations under public-private partnership agreements on the debt of local government units in Poland Ewa Szcześniak 10.32027/PZP.18.4.9 The concept of public procurement. A commentary to the judgement of the CJEU of 1 March 2018 in case file No C-9/17 (Tirkkonen) Grzegorz Wicik 10.32027/PZP.18.4.10 Discussion regarding a case resolved by a judgement by the National Appeals Chamber of 4 January 2019 Commentary to the judgement of the National Appeals Chamber of 4 January 2019 (KIO 2611/18) Michał Drozdowicz 10.32027/PZP.18.4.11 Discussion regarding a case resolved by a judgement by the National Appeals Chamber of 4 January 2019 Commentary to the judgement of the National Appeals Chamber of 4 January 2019 (KIO 2611/18) Irena Skubiszak-Kalinowska 10.32027/PZP.18.4.1 A review of certain decisions of the National Appeals Chamber on the introduction of an electronic form for public procurement documents Irena Skubiszak-Kalinowska 10.32027/PZP.18.4.2