Judgment 1. Heard the parties. 2. Petitioners grievances is against handing over of investigation of Masrakh P.S. Case No. 154/99 back to the local police after the case had already been transferred to C.I.D. Bihar, Patna and investigation of the same had already been taken over by the C.I.D. The petitioner has alleged that such re-transfer is wiithaout any valid and justified reason and 1 is actually at the instance of local M.L.A. who made a request for such action through his letter dated 6.3.2000 (An-nexure-4). 3. In the counter affidavit the respondents have not denied Annexure-4 and their only explanation by way of reason for such action is that the D.I.G., C.I.D. and l/G of C.I.D. after going through the progress report of the investigation officer Neeraj Kr. Sinha found that the investigation of the local police was on the same line. In criminal cases the investigation has to be done on the basis of materials and circumstances as found by the investigating officer and in which way the investigation is going on by itself cannot decide as to which agency should hold investigation. Once investigation of the criminal case was handed over to the C.I.D. it will be presumed that there was good and valid reason of such action and unless subsequent good reasons are shown to exist re-transfer of the investigation to the local police has to be held as arbitrary. Learned counsel for the petitioner has rightly placed reliance upon a Division Bench Judgment of the Allahabad High Court in the case of Chandravir and others V/s. State of U.P. reported in 1996 Criminal Law Journal, 1999. 4. On the basis of material available on record, I am constrained to hold that the impugned action of the respondents in re-transferring the case to the local police is without any valid and cogent reason and accordingly this writ application is allowed and the order contained in An-nexure-5 is hereby quashed. The aforesaid criminal case should be investigated in accordance with law by the C.I.D. Bihar.