Civil Guard (Spanish: Guardia Civil) of Costa Rica was a gendarmerie type force responsible for both limited national defense and internal security missions.
The Guardia Civil was the largest branch of the Fuerza Pública (Public Force) and was responsible for the defense of the nation in addition to its law enforcement duties.
The Civil Guard was founded in 1949 and combined the functions of an army, air force, navy, national police and coast guard. As formed, it was intended to have a very limited military capacity but have a primary internal security function. Its strength was initially 1,200, which remained relatively stable until the mid-1970s when it increased to 2,000. With its increased size came a tendency to assume a more military role.
The Civil Guard was organised along military lines and was deployed in seven provincial companies. Roughly 40 percent of the Civil Guard was deployed in or near the capital of San José. The units included the Presidential Guard approximating battalion size, and a Security battalion which combined 1st and 2nd Companies. The 3rd Company, which functioned as a strategic reserve, a depot and a training unit, was also the size of a small battalion.
Other Civil Guard units included the Traffic Force, a nationwide highway patrol, and the Investigationes, a detective force. Since 1963, all personnel have been trained at the National Police School with others undergoing training in the United States or at the School of the Americas in the Panama Canal Zone.
The police functions of the Civil Guard were basically confined to the national and provincial capitals with the policing of rural towns and villages being the responsibility of the Rurales (Rural Assistance Guard).
A small Civil Guard force was deployed in the Dominican Civil War. The only recent operations of the Civil Guard were during the Nicaraguan Civil War and during the Contra War.