Prawo Zamówień Publicznych no. 3/2020 The role of the President of the PPO in the professionalisation of public procurement Hubert Nowak Professionalisation of inspections carried out by the President of the PPO Mateusz Winiarz The Educational and information activities of the Public Procurement Office as a means to professionalise public procurement Anita Wichniak-Olczak New qualification procedure for members of the National Appeals Chamber Małgorzata Rakowska Improving the quality of adjudication in pre-contractual public procurement disputes Anna Banaszewska The impact of the disciplinary responsibility of the members of the National Appeals Chamber on the professionalisation of public procurement Dorota Sylwestrzak Cassation and the professionalisation of public procurement Małgorzata Nyc-Zimny Authorised representatives in public procurement jurisdiction proceedings Żaneta Urbaniak Cooperation between Parties in professionalising the public procurement procedure Marcin Sowula A public procurement contractor – actual or formal professionalisation? Andrzela Gawrońska-Baran, Włodzimierz Dzierżanowski On improving the effectiveness of managerial control over public procurement Magdalena Małecka-Łyszczek On the need for and directions of changes in the regulation of Article 305 of the Penal Code Krzysztof Horubski Procurement during the COVID-19 pandemic period Michał Kania Current problems in the financial servicing of public procurement Józef Andrzej Laskowski On the problems of the legal status of a public procurement contractor. Commentary to the judgment of the Court of Justice of 11 June 2020, case No C-219/19 Żaneta Urbaniak