In a piece of news from January 2021 it was said that:
The EU’s anti-fraud watchdog, OLAF, has opened an investigation into Frontex, the bloc’s border agency, over allegations of harassment, misconduct and migrant pushbacks, according to four EU officials.
The two agencies confirmed an investigation was talking place, but did not confirm/provide any other detail.
So, I wonder: to what extent can OLAF investigate such allegations, since they mostly involve [alleged] human-rights violations, but OLAF is an anti-fraud agency?
(The two agencies often cooperate, e.g. on tobacco smuggling, so one investigating the other also seems odd.)