New South Wales Consolidated Acts(cf Crimes Act 1900 , s 357G)
(1) A police officer may apply to an authorised officer for a warrant if the police officer:(a) has been denied entry to a specified dwelling, and(b) the police officer suspects that:(i) a domestic violence offence is being, or may have been recently, committed, or is imminent, or is likely to be committed in the dwelling, and(ii) it is necessary for a police officer to enter the dwelling immediately in order to investigate whether a domestic violence offence has been committed or to take action to prevent the commission or further commission of a domestic violence offence.
(2) An authorised officer may, if satisfied that there are reasonable grounds for the police officer’s suspicion, issue a warrant authorising any police officer:(a) to enter the dwelling, and(b) to investigate whether a domestic violence offence has taken place or to take action to prevent the commission or further commission of a domestic violence offence, or both.
Note: For provisions relating to applications for warrants, and other related matters, see section 59.