Nato experts were able to trace the communications traffic between the two Arab leaders, and so pinpoint Gaddafi to the city of Sirte, where he was murdered on October 20 2011.
Nato jets shot up Gaddafi's convoy, before rebels on the ground dragged Gaddafi from a drain where he was hiding and then subjected him to a violent attack which was videod.
Sarkozy, who lost the presidential election in May, has continually denied receiving money from Gaddafi.
