Legal framework
NEW OLAF Regulation 2020/2223 of 23 December 2020 amending Regulation (EU, Euratom) No 883/2013, as regards cooperation with the European Public Prosecutor’s Office and the effectiveness of the European Anti-Fraud Office's investigations
Translations in the EU official languages can be found here
Implementing provisions for the handling of complaints
(all the EU official language versions can be found in the Official Journal of the European Union)