On the eve of polling in Northern Ireland, unionists and republicans have made claim and counterclaim of electoral fraud which could result in legal proceedings.
Mr Seamus Kerr, a former Sinn Fein chairman of Omagh District Council, told The Irish Times last night he intended to facilitate an election petition against any "marginal victories" by Ulster Unionist Party (UUP) candidates in Fermanagh-South Tyrone or West Tyrone due to allegations of electoral malpractice.
An RUC investigation was opened following allegations that the UUP was in possession of absent-vote applications last March, several weeks before other parties had access to the forms.
A senior official from the electoral office is currently suspended from his post.
"I will make available contradictory evidence from the electoral office that a police investigation was ongoing on May 17th and the official police position on May 1st that it had been concluded," said Mr Kerr.
The UUP leader, Mr David Trimble, yesterday claimed Sinn Fein was engaged in "massive" electoral fraud. He said the "biggest loophole" in the system was the possible abuse of postal votes.
"There is no doubt Sinn Fein is involved in electoral fraud on a massive scale."
He said a British government inquiry would be necessary after the election. "There is a very important big issue there that has to be dealt with."
The Sinn Fein president, Mr Gerry Adams, rejected Mr Trimble's allegations and challenged him to "put his own house in order before he lectures the rest of us".
Mr Adams said he had written to the Chief Electoral Officer, Mr Denis Stanley, to ask why the official had been suspended.
"If it had involved Sinn Fein you could be sure that it would have been shouted from the rooftops," Mr Adams said.
The SDLP yesterday claimed Sinn Fein election workers were threatening voters in South Down. Mr Eddie McGrady, the outgoing MP in the constituency, said six instances of Sinn Fein harassment of voters had come to light.
"They're knocking on the doors and telling people we will know how you vote, we will be back if you don't vote the right way.
"They are insinuating incorrectly, and by lying, that in some way the electoral process is not safe or secret," he said.
A Sinn Fein spokesman described Mr McGrady's claims as "absolute nonsense".
The DUP leader, the Rev Ian Paisley, said only the return of his party's candidates could save the North from being chained to "the fascist chariot of destruction" by Mr Trimble.
Describing tomorrow as "Ulster's destiny day" Dr Paisley said voters had to "pull back, refuse the imprisonment of IRA terrorism, the blackmail of Blair, Ahern, Clinton and Co and the capitulation to Ulster's traditional enemies."
Mr Peter Robinson, the DUP deputy leader, said the British government could no longer prop up Mr Trimble because he did not have the necessary backing of the majority of unionists.
"If this election shows that that isn't there, then very clearly what will have to happen is that there has to be a renegotiation so that they can enjoy the support of the unionist community," he said.