In areas under their respective charges, the Commissioner and, subject to his orders, every Police Officer not inferior in rank to a Sub-Inspector, and the Superintendent and, subject to his orders, any Police Officer not lower than such rank as may be specified by the Government in that behalf, may, from time to time, as occasion may arise, but not so as to contravene any order made under section 31 give all such orders either orally or in writing as may be necessary to,—