I. Brief History of Kolasib / SP Kolasib District
On July 29th 1998 Kolasib was elevated into a district and Kolasib DEF. was born. In 2007 a new Sub-Division, Vairengte Sub-Division was created underKolasib District. At present Kolasib DEF. consist of two Sub-Division namely Kolasib Sub-Division and Vairengte Sub-Division and four Police Station Namely Kolasib, Kawnpui, Bairabi and Vairengte and two Out-Post at Bilkhawthlir and Saiphai, Kolasib DEF. even consist Traffic Cell which was established on 23rd December 2008. The Office of SP Kolasib is situated at Khuampuilam, Kolasib and presently SP, Koalsib is assisted by Addl. S.P,Dy.SP Head Quarters and several Sub-ordinate Officers and staff. The post of SP Kolasib has been occupied by the following Officers as under:-
List of Superintendent of Police, Kolasib
| Sl. No. | Name | From | To |
| 1 | Joseph Lalchhuana MPS | 1.9.1998 | 6.8.2003 |
| 2 | LalbiakthangaKhiangte MPS | 6.8.2003 | 22.9.2008 |
| 3 | Lallianmawia MPS | 22.9.2008 | 9.11.2009 |
| 4 | PC Lalchhuanawma MPS | 12.11.2009 | 2.9.2010 |
| 5 | Madhur Verma IPS | 2.9.2010 | 14.5.2013 |
| 6 | Rishi Pal IPS | 3.9.2013 | 31.7.2014 |
| 7 | RP Meena IPS | 26.8.2014 | 6.5.2015 |
| 8 | C. Lalzahngoa, MPS | 11.5.2015 | 21.7.2017 |
| 9 | Abhishek Dhania IPS | 24.7.2017 | 23.1.2019 |
| 10 | Vanlalfaka Ralte MPS | 2.2.2019 | Till date |
II. Functions and Responsibilities:
Kolasib DEF. is divided into two Sub-Divisions – Kolasib Sub-Division headed by SDPO, Kolasib and Vairengte Sub-Division headed by SDPO, Vairengte, Kolasib Sub-Division comprises Kolasib PS, Kawnpui PS and Bairabi PS and Vairengte Sub-Division comprises Vairengte PS, Bilkhawthlir Out-Post and SaiphaiOut Post. All the Police Stations and Out-Post regularly checked criminal activities and maintains law and order situation within their respective jurisdiction. They functions in prevention and detection of crime.
III. Welfare measures :
District Welfare Committee (KLB DEF.) was constituted under the chairmanship of SP, Kolasib and all head of branches SP(K) Office were all the members of the welfare.
IV Medal Recipients :
Kolasib DEF. is also responsible for maintenance of Law and Order within Kolasib District and men of Kolasib DEF. have been awarded Medals, Awards and recommendation for their good and exceptional service to the state and the country as whole. 3 (three) Police Officers have been awarded Police medal and 5 (five) Police Officers have been awarded Governor Gold medal for their exceptional service even in the face of danger or impending death. The name of the medal receipts are shown as below:
List of medal recipients.
- POLICE MEDAL FOR GALLANTRY
| Sl. No. | Rank | Name | Medal | Year |
| 1 | SI | LalrinthangaSailo | Police Medal | 25.10.2006 |
- POLICE MEDAL FOR meritorious service
| Sl. No. | Rank | Name | Year |
| 1 | Inspr | ARV Pillai | Republic Day 2008 |
| 2. | SP KLB | C. Lalzahngoa, MPS | Independence Day, 2016 |
- GOVERNOR’S GOLD MEDAL
| Sl. No. | Rank | Name | Year |
| 1. | SI. | B. Lalbiakmawia | Independence Day, 2001 |
| 2. | SI | CH. Chakma | Independence Day, 2001 |
| 3. | SI | JL. Mahto | Independence Day, 2001 |
| 4. | SI | ManikLal Das | Independence Day, 2003 |
| 5. | Inspr. | DP Mahto | Independence Day, 2004 |