In which situation would you go to OLAF?

Going to OLAF, which stands for the European Anti-Fraud Office, is appropriate when there are suspicions of fraud. OLAF's primary mission is to protect the financial interests of the European Union by investigating fraud, corruption, and any other illegal activities that harm the EU's finances. When there are indicators or reasonable suspicion that fraudulent activities are occurring—such as financial mismanagement, irregularities in reporting, or misuse of funds—reporting these to OLAF allows for an official investigation to take place.

In contrast, the other situations presented would not warrant direct involvement with OLAF. Conflicts of interest should typically be handled through internal project management or compliance channels, rather than an external agency focused on fraud. Similarly, the completion of a project does not relate to situations involving financial misconduct, nor do delays in payments necessarily indicate fraud; these could stem from various administrative or operational issues that may not require the intervention of OLAF. Therefore, the best scenario for approaching OLAF is indeed when there is a suspicion of fraud.