[1] In 1917, Camp Olivas started serving as police station and relief center, evacuation based and hospital site, as well as cadre and mobilization area, in 1936.

From 1917 up to 1936, Camp Olivas then was used as police station and the base of relief and evacuation center hospital site, as well as cadre and mobilization area.

During the outbreak of the Second World War (WWII), the Camp was used as the mobilization center for men-folks in Central Luzon who bravely fought in Bataan and Corregidor.

[2] Prominent detainees imprisoned there include Edicio de la Torre,[3] Judy Taguiwalo,[4] Tina Pargas,[5] Marie Hilao-Enriquez,[6] and Bernard-Adan Ebuen.

[7] Prisoners who were documented to have been tortured include the sisters Joanna and Josefina Cariño,[8] the brothers Romulo and Armando Palabay,[2] and Mariano Giner Jr of Abra.