(17)The right of OLAF (European Anti-Fraud Office) and of the Court of Auditors to comprehensively exercise their respective competences in Ukraine, including on-the-spot checks and inspections as provided for in Regulation (EU, Euratom) No 883/2013 concerning investigations conducted by OLAF in line with Article 25 of the Space Regulation and Article 23 of the Secure Connectivity Regulation;