Section 352(d) in Police Regulations, Bengal , 1943
(d)If the gang is found to be criminal or oppressive, whether it be a foreign Asiatic gang or not, no effort shall be spared to bring the offenders to justice for specific crimes and in default of this to deal with the members of the gang under the preventive sections of the Code of Criminal Procedure. On no account shall they be passed on under police guard from one province or one district to another.