Under the direction of a Belgian anti-corruption judge, police and tax officials made seven raids on Tuesday and Wednesday, detaining an agent in Monaco and his assistant in the Belgian city of Liege. The initial stage of the probe, concentrating on Mitrovic's move, led to a series of raids in April but no arrests and investigators are now focusing on agent Christophe Henrotay.
Henrotay is the man who was held in Monaco in the latest round of raids. A source close to the inquiry told AFP he is suspected of taking illegal kickbacks in connection with another transfer. Four of this week's raids were in Monaco, two in Belgium and one in London, with the cooperation of the Metropolitan Police and British customs and revenue officers. Prosecutors have not publicly named anyone connected with the probe, but a judicial source confirmed to AFP in April that the Mitrovic transfer was part of the investigation.