The people who wanted the Nordic Model in Ireland don't seem to think that the police are the problem. There's a newspaper article in the Irish Independent that came out just before the long-awaited review of the 2017 law change that brought the Nordic Model to Ireland.
The headline is "Gardaà may need more powers to arrest men paying for sex, as review of anti-prostitution law ready ‘within weeks’". Underneath the headline is a photo of the Minister for Justice, the ex-Minister for Justice who is now working for Ruhama, and the CEO of Ruhama. All three of them holding Ruhama documents.
Ruhama is an NGO founded by two orders of nuns, both of whom had run Magdalene Laundries. They think that the police should have more powers so that more men can be convicted for paying for sex. They knew ahead of publication that the review was going to say that the Nordic Model isn't working.
It can't work as things are. It might work if the police had more powers, so they seem to believe. I doubt if the people of Ireland want to give the police more powers and presumably more money to try to stop men fornicating.
Gardaà may need more powers to arrest men paying for sex, as review of anti-prostitution law ready ‘within weeks’ | Irish Independent