Working closely with Fouché, Dubois, the police prefect, had his men collect the remnants of the dead mare and of the cart at the scene of the explosion and question all the Paris horse traders. One of them gave the description of the man who had bought her from him. On 18 Nivôse Year IX (January 8, 1801), fifteen days after the explosion in the rue Saint-Nicaise that barely missed Napoleon, Carbon, the man who had made the bomb, was identified by Lamballe – the man who had sold (or rented) the cart to him – as well as by the blacksmith who had shod the mare hitched to the cart. Fouché – who had known the Jacobins’ innocence all along – brought solid proof to Bonaparte that the plotters were the royalist chouans rather than the Jacobin exclusifs. Fouché showed Bonaparte the evidence that the bomb made by the exclusif Chevalier, whom Dubois’ police had accused of having made the machine infernale, was quite different from the bomb that had exploded in the rue Saint-Nicaise.