Frontier Constabulary was created by amalgamating Border Military Police (BMP) and Samana Rifles (SR) in 1913. Both of these were militia forces guarding the border between the then settled areas of Khyber Pakhtunkhwa and tribal areas.
"Along the North West Frontier is spread a force which moves up & down & down & up from one desolate post to another, ready to take the field at ten minutes notice. They are always half in and half out of a difficulty somewhere along the mountainous lines. Their lives are as hard as their muscles but papers never say anything about them". Rudyard Kipling.
Frontier Constabulary’s main function was to police the border of KPK and the Tribal areas against tribal incursions, criminal gangs operating across the border and check the smuggling of contraband items.