Camp Olivas
Camp Olivas is the regional headquarters of the Police Regional Office 3: and is located in  Brgy San Nicolas along Mac Arthur Highway, Camp Olivas, City of San Fernando, Pampanga. It was named after Captain Julian Olivas. History

Establishment and prewar history 
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. Camp Olivas was established as the First Pampanga Cadre Camp utilized by the then Insular Police known as “Philippine Constabulary. The camp is known to have been named in honor of Captain Julian Olivas in 1939 who died in the line of duty on July 12, 1939 when the heroic PC Inspector (equivalent to Provincial Director) was shot from behind by four men identified with the labor group while mediating a labor dispute at the Pampanga Sugar Development Company (PASUDECO). President Manuel L. Quezon immediately awarded him posthumously the Distinguished Contact Star medal. It was until 1957 when it became the seat of peace-keeping regional force in the guise of the First Philippine Constabulary Zone. Camp Olivas, where the Headquarters of the Police Regional Office 3 is located, was born out of the necessities of the time. 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. It was the seat of the first Pampanga Cadre Camp law enforcement activities from 1936 to 1940. World War II 
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. The Camp was converted into a Red Cross Hospital until the fall of Bataan. The Japanese occupied the Camp until they were driven out in the early month of 1945. Postwar era 
After the war, Camp Olivas was made the headquarters of the First Military Area in 1947 and became the center of the anti-Huk campaign in Central Luzon where bloodiest encounters took placed between the government forces and the HUKBALAHAP of Hukbong Bayan Laban sa Hapon, which was later became HMB of Hukbong Mapagpalaya ng  Bayan after the war. The 1PCZ then has jurisdiction over the provinces of Regions 1, 2 and 3, namely: Abra; La Union; Mt Province; Batanes; Nueva Ecija; Cagayan; Ilocos Norte; Ilocos Sur; Pangasinan; Isabela; Bataan; Bulacan; Nueva Ecija; Pampanga; Tarlac and Zambales. In 1969, the area of responsibility of the 1PCZ further expanded when Congress Legistate the division Mountain Province, namely; Benguet, Kalinga Apayao, Ifugao, and retaining Mt Province. So intricate was the peace and order job of the 1PCZ that in a period of two decades, it saw the assignment of fourteen Zone Commanders from 1957 up to 1978. Capture by RAM during the August 1987 Philippine coup attempt 

On August 28, 1987, Camp Olivas was briefly taken over by forces under the Reform the Armed Forces Movement during the August 1987 Philippine coup attempt. When the RAM coup failed overall, however, the RAM forces that had taken over Olivas quietly left the camp, so that the camp was back to normal by dawn the following morning. References

Philippine National Police headquarters
Buildings and structures in San Fernando, Pampanga
Detention centers during the Marcos dictatorship