Switzerland eventually agreed to extradite him to Italy, but only on financial charges stemming from the collapse of Banco Ambrosiano. Gelli's extradition in February 1988 required a high-level security apparatus, including 100 sharpshooters, decoy cars, a train, road blocks and two armored cars to transfer him to Italy. In July 1988 he was absolved of charges of subversive association by a Bologna court but was presented with a five-year prison term for slander, having side-tracked the investigation into the 1980 bombing of the Bologna train station. Stipulations connected to his extradition, however, prevented him from serving time. Two years later, an appeal court threw out Gelli's slander conviction. A retrial was ordered in October 1993.