Opinions and reports

2023 - 2028

Annual activity report
30 April 2025

Annual activity report 2024

other linguistic versions will be available soon.

Opinion
6 February 2025

Opinion No 1/2025 – OLAF’s internal investigations of harassment within the EU institutions, bodies, offices and agencies (IBOAs)

Opinion
12 November 2024

Opinion No 4/2024 - OLAF's power to conduct internal investigations: the case of Members of EU institutions

Opinion No 3/2024 - OLAF Guidelines on investigation procedures

Opinion
12 November 2024

Opinion No 3/2024 - OLAF's Guidelines on investigation procedures

Annual activity report
10 July 2024

Annual activity report 2023

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
15 May 2024

Opinion No 2/2024 – OLAF's preliminary draft budget for 2025

Opinion
16 April 2024

Opinion No 1/2024 – Complementary investigations of OLAF and the EPPO

Opinion
31 May 2023

Opinion No 1/2023 – OLAF's preliminary draft budget for 2024

Annual report
31 May 2023

Annual activity report 2022

(all the EU official language versions can be found in the Official Journal of the European Union)

2017 - 2022

Opinion
22 November 2022

Opinion No 1/2022 – OLAF's preliminary draft budget for 2023

Annual activity report
11 February 2022

Annual activity report 2021

(all the EU official language versions can be found in the Official Journal of the European Union)

Annual activity report
14 June 2021

Annual activity report 2020

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
4 February 2021

Opinion No 1/2021 - OLAF’s recommendations not followed by the relevant authorities

Opinion
31 May 2021

Opinion No 2/2021 - Working arrangements between OLAF and EPPO

together with the replies from OLAF and EPPO

Opinion
21 October 2021

Opinion No 3/2021 - Supervision of OLAF internal investigations: Strategic conclusions and best practices

Opinion
18 October 2021

Opinion No 4/2021 - OLAF’s Preliminary Draft Budget for 2022

Opinion
17 December 2021

Opinion no 5/2021 - Analysis of OLAF's investigations lasting more than 36 months in 2019

Annual activity report
11 August 2020

Annual Activity Report 2019

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
22 April 2020

Opinion No 1/2020 - OLAF's dismissed cases concerning Members of EU Institutions

Opinion
30 July 2020

Opinion No 2/2020 - OLAF's preliminary draft budget for 2021

Annual activity report
15 July 2019

Annual Activity Report 2018

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
25 June 2019

Opinion No 1/2019 - OLAF's preliminary draft budget for 2020

Annual activity report
1 June 2018

Annual Activity Report 2017

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
23 July 2018

Opinion No 1/2018 - OLAF's preliminary draft budget for 2019

Annual activity report
23 May 2017

Annual Activity Report 2016

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
26 July 2017

Opinion No 1/2017 - OLAF’s Preliminary Draft Budget for 2018

Opinion
29 September 2017

Opinion No 2/2017 - Accompanying the Commission Evaluation report on the application of Regulation (EU) of the European Parliament and of the Council No 883/2013 (Article 19)

(all the EU official language versions can be found in the Official Journal of the European Union)

2011 - 2016

Annual activity report
19 April 2016

Annual activity report 2015

Opinion
13 December 2016

Opinion No 1/2016 - OLAF's preliminary draft budget for 2017

Opinion
20 January 2017

Opinion No 2/2016 - OLAF's Annual Activity Report 2015

Annual activity report
27 April 2015

Annual activity report 2014

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
5 May 2015

Opinion No 1/2015 - OLAF’s preliminary draft budget for 2016

Opinion
15 December 2015

Opinion No 2/2015 - Legality check and review in OLAF

Opinion
17 February 2016

Opinion No 3/2015 - Opinion on the OLAF draft Investigation Policy Priorities (IPPs) for the year 2016

Annual activity report
28 March 2014

Annual activity report (February 2013-January 2014)

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
13 February 2014

Opinion No 1/2014 - OLAF's Investigation Policy Priorities

Opinion
17 March 2014

Opinion No 2/2014 - Case selection in OLAF

Opinion
15 May 2014

Opinion No 3/2014 - OLAF’s preliminary draft budget for 2015

Opinion
24 April 2015

Opinion No 4/2014 - Control of the duration of investigations conducted by the European Anti-fraud Office

Opinion
1 April 2015

Opinion No 5/2014 - Statistics on the investigative performance of OLAF (part I)

Report
1 August 2014

Report No 1/2014 - Safeguarding OLAF's investigative independence

Report
17 November 2014

Report No 2/2014 - Implementation by OLAF of the Supervisory Committee's recommendations

Report
12 February 2015

Report No 3/2014 - Opening of cases in OLAF in 2012

Annual activity report
20 December 2013

Annual activity report (January 2012-January 2013)

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
16 July 2013

Opinion No 1/2013 - OLAF’s Preliminary Draft Budget for 2014

Opinion
14 December 2013

Opinion No 2/2013 - Establishing an internal OLAF procedure for complaints

Opinion
26 June 2012

Opinion No 1/2012 - OLAF’s Preliminary Draft Budget for 2013

Opinion
11 December 2012

Opinion No 2/2012 - Analysis of the case OF/2012/0617

Opinion
30 May 2011

Opinion No 1/2011 - Access by OLAF to personnel data held by the Commission

Opinion
13 June 2011

Opinion No 2/2011 - Powers of OLAF for the independent conduct of internal investigations within the EU institutions

Opinion
14 July 2011

Opinion No 3/2011 - OLAF’s Preliminary Draft Budget for 2012

Opinion
20 September 2011

Opinion No 4/2011 - on the Amended proposal for a Regulation of the European Parliament and of the Council amending Regulation (EC) No 1073/1999 concerning investigations conducted OLAF

Opinion
17 November 2011

Opinion No 5/2011 - Transmission by OLAF to the institutions of final case reports drawn up following internal investigations closed without follow-up

Annual activity report
30 November 2011

Annual activity report (January-November 2011)

(all the EU official language versions can be found in the Official Journal of the European Union)

Annual activity report
28 June 2011

Annual activity report (June 2009-December 2010)

(all the EU official language versions can be found in the Official Journal of the European Union)

2005 - 2010

Opinion
30 June 2010

Opinion No 1/2010 - OLAF’s Preliminary Draft Budget for 2011

Opinion
23 September 2010

Opinion No 2/2010 - delivered in accordance with Article 12.2 of Regulation No 1073/99 of the European Parliament and of the Council concerning investigations conducted by OLAF

Opinion
23 September 2010

Opinion No 3/2010 on the Reflection Paper on the Reform of the European Antifraud Office (OLAF)

Opinion
12 October 2010

Opinion No 4/2010 - Investigation Planning

Opinion
29 November 2010

Opinion No 5/2010 - Respect for fundamental rights and procedural guarantees in investigations by the European Anti-Fraud Office

Annual activity report
22 December 2009

Annual activity report (June 2008-May 2009)

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
19 March 2008

Opinion No 1/2009 - OLAF’s Annual Management Plan for 2009

Opinion
28 May 2009

Opinion No 2/2009 - OLAF’s Reports of Investigations that have been in progress for more than nine months

Opinion
28 May 2009

Opinion No 3/2009 - OLAF’s Preliminary Draft Budget for 2010

Annual activity report
1 August 2008

Annual activity report (June 2007-May 2008)

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
28 March 2008

Opinion No 1/2008 - Prima facie Non-Cases

Opinion
26 February 2008

Opinion No 2/2008 - OLAF’s Annual Management Plan for 2008

Opinion
2 April 2008

Opinion No 3/2008 - OLAF’s Preliminary Draft Budget for 2009

Opinion
2 December 2008

Opinion No 5/2008 - OLAF 'de minimis' policy

Annual activity report
17 October 2007

Annual activity report (December 2005-May 2007)

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
25 April 2007

Opinion No 1/2007 - OLAF’s Reports of Investigations that have been in progress for more than nine months

Opinion
25 April 2007

Opinion No 2/2007 - OLAF’s Preliminary Draft Budget for 2008

Opinion
28 April 2006

Opinion No 1/2006 - OLAF’s Preliminary Draft Budget for 2007

Opinion
13 October 2006

Opinion No 2/2006 - concerning the reform of the Regulation (EC) No 1073/1999 concerning investigations conducted by the European Anti-Fraud Office (OLAF)

Opinion
13 September 2006

Opinion No 3/2006 - Performance indicators for OLAF

1999 - 2005

Opinion
22 March 2005

Opinion No 1/2005 on the Commission's staff working document on complementary evaluation of the activities of OLAF

Opinion
22 March 2005

Opinion No 2/2005 – OLAF's preliminary draft budget for 2006

Annual activity report
22 December 2004

Annual activity report (June 2003-July 2004)

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
1 April 2003

Opinion No 1/2003 – OLAF's preliminary draft budget for 2004

Opinion
18 June 2003

Opinion No 2/2003 - Evaluation of the activities of the European Anti-fraud Office (OLAF)

Opinion
22 October 2003

Opinion No 3/2003 – Concerning the proposals made by the Institutions to extend the role of the Supervisory Committee

Opinion
16 December 2003

Opinion No 4/2003 – On the draft Memorandum of Understanding beetween OLAF and the Commission

Annual activity report
18 June 2002

Annual activity report (September 2001-June 2002)

(all the EU official language versions can be found in the Official Journal of the European Union)

Progress report
11 October 2001

Progress report (July 2000-September 2001)

(all the EU official language versions can be found in the Official Journal of the European Union)

Progress report
25 August 2000

Progress report (July 1999-July 2000)

(all the EU official language versions can be found in the Official Journal of the European Union)

Opinion
25 February 2002

Opinion No 1/2002 – Possible intervention by the Commission's legal service on decisions concerning public access to documents relating to OLAF investigations

Opinion
12 March 2002

Opinion No 2/2002 – The Green Paper on the criminal-law protection of the Community's financial interests and the establishment of a European public prosecutor

Opinion
10 April 2002

Opinion No 3/2002 – OLAF's preliminary draft budget for 2003

Opinion
18 January 2001

Opinion No 1/2001 – The relations between the Commission and OLAF and, in particular, the procedures for the recruitment of management staff in the Office

Opinion
30 March 2001

Opinion No 2/2001 – The preliminary draft of the amending budget for 2001

Opinion
6 September 2001

Opinion No 3/2001 – The possible establishment of a European public prosecutor responsible for internal investigations

Opinion
6 November 2001

Opinion No 4/2001 – The lifting of the reservation concerning the appropriations relating to 38 posts of OLAF's organisation chart for 2001

Opinion
8 February 2000

Opinion No 1/2000 – Filling of posts in the Secretariat

Opinion
16 May 2000

Opinion No 2/2000 – The initiatives of the Institutions concerning the future of OLAF

Opinion
5 December 2000

Opinion No 3/2000 – The risk of halting of the recruitment procedures for OLAF staff