Police in Liverpool have recovered the £500,000 in currency and travellers' cheques stolen from the American Express bureau in Nassau Street, Dublin, last November.
A 47-year-old man and a 46-year-old woman are expected to appear in court today, after the money was found in a raid on a house in Birkenhead on Thursday evening.
It is understood that people working for the south Dublin criminals who carried out the robbery were trying to pass off part of it. Gardai have been helping the Liverpool branch of the National Crime Squad which raided the house.
The gang had threatened to kill Mrs Campbell's husband, Conleth, if she refused to co-operate. He was taken from the house and forced into the back of his car, which was left near Sandymount Strand.
Mrs Campbell had to de-activate alarms before opening the safe containing £500,000 in travellers' cheques, foreign currency and Irish pounds. The couple, who were held for 10 hours, were badly shocked but unhurt.
After the robbery the Garda Commissioner, Mr Pat Byrne, set up a special unit at Blackrock Garda station to investigate the robbery, one of a spate of armed robberies in Dublin last year.
Gardai believe most of the robberies in the city last year were carried out by a small number of gangs who are thought to have been trying to raise cash to buy into the drugs trade.
The Garda has had a number of successes in detecting the people responsible. After a robbery at Dublin Airport in October gardai in north Dublin recovered £28,000 worth of foreign currency and arrested seven people at houses in the north inner city.
In all there were just over 100 armed robberies in the city last year, almost double the figure for the year before. There was also a spate of robberies in the midlands and along the west coast last year, carried out by gangs from Cork and Limerick.