He attended preparatory school in Biñan and studied law at University of Santo Tomas, obtaining a degree in 1865.Whilst practicing law, Bautista, on his way to Malolos, Bulacan, was captured by a group of bandits, who subsequently learned that he saved many of their friends as a defender of the poor in court cases against rich Filipinos and Spaniards.In 1896, the Spaniards arrested and imprisoned him at Fort Santiago, as he was suspected of being involved in the Philippine Revolution; Bautista elected to defend himself and was later released from prison.[3][2] On July 14, 1899, Bautista was elected to the position of president in Tarlac's Revolutionary Congress and was later appointed judge of the Court of First Instance of the province of Pangasinan.The only copy of the "The Birth Certificate of the Filipino Nation", handwritten by Lt. Col. Jose Bañuelo is set for auction at the Leon Gallery on September 14, 2024.