Bihar Police comes under direct control of Department of Home Affairs, Government of Bihar. The Bihar Police is headed by a Director General of Police (DGP; three-star rank). The state is divided into four zones (Patna, Muzaffarpur, Darbhanga and Bhagalpur), each commanded by an Additional Director General (Addl. DGP; three-star rank) or an Inspector-General (IGP; two-star rank). Each zone is divided into two to three ranges, each commanded by a Deputy Inspector-General (DIGP; one-star rank). Within each range are anywhere from three to six districts, each under a Superintendent of Police. Patna is under a Senior Superintendent of Police.[2]
Source : Wikipedia
Bihar Police Constable DET Admit Card 2017
BIHAR POLICE DRIVER CONSTABLE RECRUITMENT 20
[ Website:- (http://csbc.bih.nic.in) ] 
Click here to download Bihar Police Constable DET Admit Card 2017
BIHAR POLICE DRIVER CONSTABLE RECRUITMENT 2016
Advt. No. 01/2016:
Total No of Posts:1577
Name of Posts:
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- CONSTABLE , DRIVER
Educational Qualification:
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- CONSTABLE : 10+2
- DRIVER 10+2 or H.M.V. and k L.M.V. (driving license )
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Click here to Download Eligible Candidate List