http://www.legislation.gov.uk/eur/2013/883/article/13/adoptedRegulation (EU, Euratom) No 883/2013 of the European Parliament and of the Council of 11 September 2013 concerning investigations conducted by the European Anti-Fraud Office (OLAF) and repealing Regulation (EC) No 1073/1999 of the European Parliament and of the Council and Council Regulation (Euratom) No 1074/1999Regulation (EU, Euratom) No 883/2013 of the European Parliament and of the CouncilRegulation (EU, Euratom) No 883/2013 of the European Parliament and of the Council of 11 September 2013 concerning investigations conducted by the European Anti-Fraud Office (OLAF) and repealing Regulation (EC) No 1073/1999 of the European Parliament and of the Council and Council Regulation (Euratom) No 1074/19992020-12-11King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32013R0883texttext/xmlen Cooperation of the Office with Eurojust and Europol Article 13 1 Within its mandate to protect the financial interests of the Union, the Office shall cooperate, as appropriate, with Eurojust and with the European Police Office (Europol). Where necessary in order to facilitate that cooperation, the Office shall agree with Eurojust and Europol on administrative arrangements. Such working arrangements may concern exchange of operational, strategic or technical information, including personal data and classified information and, on request, progress reports. Where this may support and strengthen coordination and cooperation between national investigating and prosecuting authorities, or where the Office has forwarded to the competent authorities of the Member States information giving grounds for suspecting the existence of fraud, corruption or any other illegal activity affecting the financial interests of the Union in the form of serious crime, it shall transmit relevant information to Eurojust, within the mandate of Eurojust. 2 The competent authorities of the Member States concerned shall be informed, in a timely manner, by the Office in cases where information provided by them is transmitted by the Office to Eurojust or Europol.