Brief History

This Organisation was set up in November 1974 for detecting illegal foreign migrants and deporting them from Assam. In the wake of the civil war in Bangladesh in 1971, there was a heavy influx of nationals from there. Even after the liberation of their country from Pakistan , hundreds and thousands of these nationals stayed back in Assam. Thus, a need arose for a separate police force to detect these people and deport them to back to Bangladesh.
A scheme known as the PIP (Prevention of Infiltration of Pakistanis) was started in 1960 under the supervision and control of the DIG Police (SB) for surveilling and watching over the infiltration prone areas of Dhubri, Cachar and Karimganj Districts covering about 269 km of international boundary in addition to prevention of cross border smuggling, crimes and sabotage.

In 1964, the PIP was renamed as PIF (Prevention of Infiltration of Foreigners) with the same objectives and this organisation was successful in detecting 309,108 foreigners out of which 259,059 have been deported.
In the meanwhile, the Assam movement for the deportation of foreigners took place. A six-year agitation was launched on the demand for detection and deportation of foreigners and this led to the signing of the Assam Accord on the midnight of August 14,1985.
Keeping with the spirit of the Accord, the task of detection and deportation of the foreigners was entrusted to the Assam Police Border Organisation.
The process of detection and deportation of foreign nationals has undergone a significant change after the introduction of the Illegal Migrant (Determination by) Tribunal Act, 1983 and the Assam Police Border Organisation is still engaged in this difficult task.

Duties

1. Detection and deportation of foreigners and illegal migrants under Foreigner's Act & IM(D)T Acts.
2. Establishment and maintenance of second line of defence on the Assam-Bangladesh Border to prevent infiltration and sabotage activities.
3. Monitoring of the inter-state border relating to encroachment and other disputed matters.

Strength

Additional Director General of Police (1) , Inspector General of Police (1), Deputy Inspector General of Police(1), Superintendent of Police(3), Additional Superintendent of Police (18), Deputy Superintendent of Police (41), Inspector Unarmed Branch (77), Sub-Inspector Unarmed (758), Assistant Sub-Inspector Unarmed (36), Head Constable Unarmed (676), Constable Unarmed (1585), Sub-Inspector Armed (12), Head Constable Armed (47), Naik Armed (4730), Constable Armed (457), Driver Constable (22), Boatman (103), Engine Boat Driver (13).