A meeting between the President Ms McAleese and the head of the PSNI, Mr Hugh Orde, has been criticised by the DUP as being 'highly political'.
The meeting is part of the President's trip to Belfast on Thursday when it is hoped she will visit staff, children and parents at a primary school on the Shankhill Road.
The President and Sir Hugh Orde are due to meet at the headquarters of the Police Service of Northern Ireland in east Belfast tomorrow morning.
DUP's Ian Paisley Jnr
The DUP's Ian Paisley Jnr claimed the meeting was "choreographed to help the IRA at a time when their statement has fallen on deaf ears".
He said: "All sense of protocol has been abandoned and all to assist a visit by someone who has done her best to insult the majority of people here by likening them to Nazis.
"The chief constable ought to explain why he is meeting the Dublin president. For what purpose is he meeting the head of a foreign state?
"Is the security minister accompanying him?"
Mrs McAleese caused a political storm after she compared the irrational hatred of Jews by Hitler's Nazi movement to an irrational hatred of Catholics passed on by people in the north to their children.
However, the SDLP's Alex Attwood dismissed the DUP's criticism of the President's visit.
"Increasing numbers of people don't take Ian Jnr seriously," the West Belfast MLA said.
"Mary McAleese has done more than virtually any other citizen to try to build bridges on the island of Ireland.
"People appreciate her work. They do not see her in any way in the terms outlined by Ian Jnr."
The President's visit comes at a time of heightened sectarian attacks against Catholic homes and properties by loyalists.