As per the Bihar irrigation act (1997) all irrigation works are to vest in the Government.
The powers of the Canal Officer are detailed, instances being –
The act also empowers the State Government to pass a notification when water is to be supplied for public purposes. The application or use of the said water or the application or use of water of any irrigation work under the management or control of the State Government shall be regulated according to the provisions of this act.
Further, whenever it appears to the State Government that injury to the public health or public convenience or to any irrigation work or to any land for which irrigation from a canal is available, has arisen or may arise from the encroachment of any river, stream or natural-drainage course, the State Government may prohibit, the formation of any such encroachment, or may order the removal or other modification of such encroachment.