A 91-year-old St Asaph woman who drowned when floods poured into her bungalow had told three men who had called that she was "warm and having breakfast" and didn’t think the water would enter.
However a pre-inquest hearing at Ruthin into the death of Margaret Hughes in the St Asaph floods of November 2012, heard how water nearby became six to seven feet deep in a half hour.
The great-grandmother had been visited by two men from the Red Cross and also a man who had spoken to her in Welsh but she "gave a very clear answer" that she was staying put.
When the full inquest is held a question will be whether this was relayed to two police officers and whether anything was done about it.
Coroner John Gittins said: "The police have very limited powers in evacuating people from their homes."
Graham Wells, for North Wales police, said: “There’s no indication here that any officer has acted, or omitted to act, in such a way that death results.”
Mr Gittins wished to assure the family of a most comprehensive inquiry.
He said: "It will not be a general inquiry into the flood. My job as coroner is not to conduct a public inquiry into the flooding."
However he would look at questions relating to general issues about the flood.
Local councillor John Wynne-Jones, involved with a residents' action group will act for the family.
There will be a five day inquest provisionally fixed for October, without a jury and It is expected there will be about 28 witnesses.