12.—(1) Where a member of the Garda Síochána has reasonable cause for believing that, in respect of an order under this Act, an offence is being or has been committed under section 5, the member may F29[…] arrest the respondent concerned without warrant.

(2) For the purpose of arresting a respondent under subsection (1), a member of the Garda Síochána may enter (if need be by use of reasonable force) and search any place (including a dwelling) where the respondent is or where the member, with reasonable cause, suspects the respondent to be.

(3) This section shall not prejudice any power of arrest conferred by law apart from this section.