Santo Domingo City had been placed in a state of defense and artillery mounted on the tower of Mercedes church and the roofs of the San Francisco and Jesuit churches. The garrison consisted of some 2,000 men, but to maintain these and the 6,000 inhabitants of the city as well as the refugees there were only limited supplies on hand. Food quickly ran low when, providentially, a French fleet appeared before the city. The admiral, who thought the entire island abandoned by the French, was delighted to find the French flag still flying and gladly rendered assistance. A desperate sortie was made on March 28, the twenty-third day of the siege, with such success that Dessalines precipitately retired, abandoning his stores. The main body of the Haitians retreated by way of the Cibao, the others through the south, all devastating the country as far as they could. Azua, San José de las Matas, Monte Plata, Cotui, San Francisco de Macoris, La Vega, Santiago and Monte Cristi were reduced to ashes. In Moca 500 inhabitants, deceived by the promises of Christophe, returned from their hiding places in the hills and assembled for divine service in the parish church, where they were butchered by the negro soldiers. In La Vega and Santiago the Haitian troops made prisoners of numerous families, aggregating 900 persons among men, women and children in La Vega and probably more in Santiago, and forced them to accompany the army to northern Haiti, where they were kept in captivity, working practically as slaves for their captors, for four years. The march was full of horrors for the poor prisoners, who were prohibited from wearing hats or shoes and were brutally treated by their guards.
As a civil administrator Ferrand did excellent work. He encouraged the resettlement of the abandoned fields, persuaded emigrated families to return, established schools and began to build water-works for the capital, a work which he nearly completed, but which was abandoned by his successors and has never been realized in the century that has since transpired. Napoleon on hearing of Ferrand's conduct not only approved everything he had done but sent him the cross of the Legion of Honor and financial assistance. Ferrand was especially impressed with the importance of Samana Bay and made plans for a city to be located west of the town of Samana, to which he intended to give the name of Napoleon. The peaceful conditions to which the country returned were only troubled by British vessels which occasionally attempted to establish blockades. On February 6, 1806, a British squadron of eight vessels under Sir John Duckworth badly defeated a French squadron, also of eight vessels, in a hotly contested fight off Point Palenque to the southwest of Santo Domingo City.