(1) If any person acting under warrant of arrest, or any police officer having authority to arrest, has reason to believe that the person to be arrested has entered into, or is within, any place, any person residing in, or being in charge of, such place shall, on demand of such person acting as aforesaid or such police officer, allow him free ingress thereto, and afford all reasonable facilities for a search therein.
(2) If ingress to such place cannot be obtained under sub-section (1), it shall be lawful in any case for a person acting under a warrant and in any case in which a warrant may issue, but cannot be obtained without affording the person to be arrested an opportunity of escape, for a police officer to enter such place and search therein, and in order to effect an entrance into such place, to break open any outer or inner door or window of any house or place, whether that of the person to be arrested or of any other person, if after notification of his authority and purpose, and demand of admitt