Translate the following English sentence to French:
"It is the task of the monitoring committee for OLAF, which was set up at the same time as OLAF, to safeguard the independence of OLAF, however it cannot undertake the action mentioned in the report of monitoring internal investigative activities conducted by OLAF."
Le comité de surveillance de l'OLAF, érigé en même temps que cet Office, a le devoir de garantir l'indépendance de l'OLAF mais ne peut toutefois exercer l'activité de contrôle, mentionnée dans le rapport, sur les actes d'instruction internes de l'OLAF.