Bolivian independence During the
War of Independence, he was initially on the royalist side, later joining the ranks of the patriots. In 1818, under the royalist government, he was elected alderman of the Cabildo de La Plata, a designation that was observed by the president of the Royal Court of Charcas, José Pascual de Vivero y Salaverría, because he had held the same position in the revolutionary councils of 1813 and 1815. Once the Republic was established, he stood out as a collaborator of
Andrés de Santa Cruz y Calahumana.
Services to the Bolivian Nation and State He served "brilliantly" as a minister of the Supreme Court of Justice of Bolivia. He was Minister of the Interior during the Government of the Marshal of Ayacucho
Antonio José de Sucre, and Minister of Foreign Affairs during the Government of Marshal of Zepita Andrés de Santa Cruz. He was vice president of the Republic, then president of the Bolivian State during the time of the
Peru-Bolivian Confederation between 1836 and 1839. "Lawyer of great reputation" and of "peaceful character and incapable of inspiring suspicion", he was the vice president and held the interim presidency of the country for a longer time (almost two and a half years), replacing the president, when Santa Cruz was in Peruvian territory in the process of forming the protectorate of the Peru-Bolivian Confederation. He presided over the Tapacarí Congress in 1836, which approved the "Restoration" government on June 11 of that year.
Awards On June 21, 1836, he was appointed
Division General of the Armies of the Republic and Chief of the Bolivian National Guards and decorated with the title of Keeper of the Peace, which he could use in his dictations, he was also decorated with a gold medal trimmed with diamonds, which had on its obverse the emblem of the Republic with the following inscription in the circle: "The Congress of the Bolivian Republic". On the reverse, an outstretched arm, holding in the hand the tree of liberty surrounded by olive branches, with the following inscription in the circle: "To the Conservator of Peace Mariano Enrique Clavo".
The codification of law under Santa Cruz The Santa Cruz Penal Code of the South-Peruvian State, promulgated on June 22, 1836, and the Santa Cruz Penal Code of the North-Peruvian State, promulgated on November 15, 1836, although they reproduced the systematics of the Bolivian Penal Code of 1831, incorporated the modifications formulated by Calvo de la Banda in 1834, which exhibited a "marked illustrated tonic". Considered by his contemporaries, due to the purity of his style, as one of the best prose writers in Bolivia, Calvo de la Banda had referred to the Castilian-Indian legislation that governed before the Santa Cruz codes, when defending the need for this codification — quoted by the Chilean historian Alejandro Guzmán Brito—in these terms: == Presidency ==