It was here, Rachid Redouane got his Garda National Immigration Bureau ID card, allowing him to travel to the UK, after marrying a Scottish woman
One of the London killers lived in Dublin for 18 months as a pastry chef.
Rachid Redouane, 30, along with two other attackers slaughtered seven people in the British capital on Saturday night.
The father of one – known as The Moroccan – lived in Dublin between 2014 and 2016.
He got his Garda National Immigration Bureau ID card, allowing him to travel to the UK, after marrying a Scottish woman.
There are fears up to 40 “backdoor” terrorists are in this country waiting to carry out an attack here or in the UK.
They are known as “clean skins”, people with no convictions or record of extremism who slip under the radar, remaining invisible to gardai.
They target young women who they see as their passport to the EU and once they have established a base here can travel to the UK.
They also ensure they have a child which greatly increases their chances of gaining residency setting them on a path to becoming an Irish citizen.
As a result of the free travel agreement, they are able to move to the UK after receiving their Garda National Immigration Bureau ID card.
It is believed this was the method used by Redouane, 30, who helped slaughter seven people and injure 48 before he was shot dead by police.
A senior Garda source said: “There is not enough manpower to monitor all those who come under suspicion and this is a big problem.
“As soon as we investigate them they lawyer-up and we can be tied up in the courts for six or seven years and they get free legal aid to fight attempts to get them out of the country.
“It is a crazy situation where they can’t be named in court or even say which country they are from. But if a lad is in court for a fight in the street he’s in all the papers.”
It has emerged up to 40 men are under suspicion of being potential terrorists, mostly living in Dublin, and around 12 are “hardcore”.
The source added: “Their main aim is to get a GNIB or FAM [EU identity card]. Once they have that they can move freely to the UK.
“They often have an address in Ireland which they do not use but it takes the suspicion off them when they are living in Britain as Ireland is their official country of residence.
“They are calling them ‘backdoor terrorists’ or sleepers and that’s a fair description.
“They are doing everything possible to stay under the radar and you won’t see them shouting and roaring at the mosques.
“They won’t be drawing attention to themselves, that’s the problem and we don’t have the manpower to watch them all.”
Redouane, known as The Moroccan, is believed to have arrived in Ireland in 2014 and lived in the Rathmines and Cabra areas of Dublin.
He married Scot Charisse O’Leary in 2011 or 2012 and they have a one-year-old daughter. O’Leary, 38, was among those arrested by terror police on Sunday morning.
Friends said their “mismatched” relationship soured after the birth, leading to a split nine months ago.
But Charisse’s neighbour Kieran Dunn, 24, claimed the terrorist visited his daughter just hours before the London Bridge attack.
Kieran said: “He came back [to Charisse’s flat] on Saturday night and checked out at 7.30pm.”
The Garda National Immigration Bureau was last night checking records to establish his residency and marital status while he was living here.
Taoiseach Enda Kenny said a small number of people are “being monitored in respect of radicalisation” but he understood Redouane “was not a member of this small group”.
Read other news on the city site of Dublin.