There are currently more than 300 former RUC officers employed in civilian roles on temporary contracts.
She said that the RUC as an organisation had offered her office full co-operation.
Great pain has been caused by the British army, the RUC and loyalist paramilitaries.
The Royal Ulster Constabulary (RUC), drew its officers largely from the majority community, Protestant and unionist.
ECONOMIST: Four deaths in the line of duty unite two communities
His widow, Phyllis Carrothers, says it is now time the IRA apologised to RUC families.
Sinn Fein said they did not go far enough and demanded complete disbandment of the RUC.
Also at the ceremony were the Catholic Primate Archbishop Sean Brady, the Garda Commissioner Pat Byrne and RUC widows.
But speaking on the BBC's Newsline programme, RUC Chief Constable Sir Ronnie Flanagan, said this was "nonsense".
The tribunal, is investigating allegations of Garda collusion in the 1989 murders of two senior RUC officers.
He said that despite the vote on the RUC, reforms of the police force would still go ahead.
The Dublin-based tribunal is investigating allegations of Garda collusion in the IRA murders of two senior RUC officers.
It was violence in Portadown that led to the death of the last RUC man murdered by loyalists.
One officer received head injuries when he was assaulted in the North Queen Street area, the RUC spokesman said.
Frederick "Eric" Lutton, 40, a former part-time member of the RUC reserve worked as a caretaker for the National Trust.
Hundreds of former RUC officers have been rehired by the PSNI on temporary contracts after retiring with generous Patten redundancy packages.
He added his aim was transform the RUC into a community-based force which would work with both sides of the community.
The Chairwoman of the RUC George Cross Widows Association has welcomed Gerry Adams' apology to the family of Garda Jerry McCabe.
Iona Myers, whose RUC husband was shot dead in Belfast, said she was upset the police reforms had been implemented now.
The tribunal is investigating whether there was Irish police collusion in the murder of two senior RUC officers in March 1989.
Surely the best way to honour the RUC, he said, was not to provide a cloak of uncertainty around the entire organisation.
BBC: Retention and Release of Information and Police Officers
Nigel Lutton - the son of a former RUC reservist shot dead by the IRA in 1979 - will be the candidate.
Alliance party leader Sean Neeson is to meet the RUC chief constable, Sir Ronnie Flanagan, to discuss recent violence in the town.
Some unionists have claimed that Sunday marks the disbandment of the RUC.
The Federation, which represents rank and file RUC officers, has been vocal in opposing changes particularly to the force's name and symbols.
The Stormont Government's August 1969 Hunt Report recommended relieving the Royal Ulster Constabulary (RUC) police force of duties of a military nature.
Phyllis Carrothers, whose husband Douglas was murdered in 1991, would now like to hear an apology to the families of RUC officers.
"The investigation was to establish the arrangements and circumstances of the meeting of the RUC officers at Dundalk Garda Station" he said.
Figg recorded that the archbishop had turned Paisley down on RUC advice.
One of the commission's 175 proposals called for the name of the RUC to be changed to the Police Service of Northern Ireland.
They have already voted to link the retention of the RUC name with any future participation in a devolved government with Sinn Fein.
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