Regulation (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 a...

Article 1 - Objectives and tasks
‘1. In order to step up the fight against fraud, corruption and any other illegal activity affecting the financial interests of the European Union and of the European Atomic Energy Community (hereinafter referred to collectively, when the context so requires, as ‘the Union’), the European Anti-Fraud Office established by Decision 1999/352/EC, ECSC, Euratom (‘the Office’) shall exercise the powers of investigation conferred on the Commission by:
(a) the relevant Union acts; and
(b) the relevant cooperation and mutual assistance agreements concluded by the Union with third countries and international organisations. [...]‘
‘4. Within the institutions, bodies, offices and agencies established by, or on the basis of, the Treaties (‘institutions, bodies, offices and agencies’), the Office shall conduct administrative investigations for the purpose of fighting fraud, corruption and any other illegal activity affecting the financial interests of the Union. To that end, it shall investigate serious matters relating to the discharge of professional duties constituting a dereliction of the obligations of officials and other servants of the Union liable to result in disciplinary or, as the case may be, criminal proceedings, or an equivalent failure to discharge obligations on the part of members of institutions and bodies, heads of offices and agencies or staff members of institutions, bodies, offices or agencies not subject to the Staff Regulations (hereinafter collectively referred to as ‘officials, other servants, members of institutions or bodies, heads of offices or agencies, or staff members’). [...]‘