Dominique de Villepin, who denies any wrongdoing, has been summoned by investigating judges to appear before them later on this month.
Dominique de Villepin had already been questioned last year over suggestions that he encouraged the spreading of corruption allegations against Nicolas Sarkozy.
It has been reported that last week, the two investigating magistrates searched Dominique de Villepin 's home and his office, taking several documents with them as a result.
Dominique de Villepin was once Nicolas Sarkozy's opponent as successor to President Jacques Chirac and it was under him that he served as prime minister of France.
