"She is a citizen of the State".
It's reported in the Irish Independent that Ms. Smith is keen to give her side of the story to investigators.
Shamima Begum, the London schoolgirl who fled to Syria to join IS in 2015, was stripped of her British citizenship by then-home secretary Sajid Javid, prompting her to take legal action against the UK. But Dublin has said it accepted the right of Smith and her daughter - an Irish citizen by virtue of her mother's nationality - to return to Ireland.
It is understood Irish government officials and members of the elite Irish Army Ranger Wing had been in Turkey for some weeks preparing for her return.
The Dundalk woman left Ireland over three years ago and was deported by Turkey over the weekend along with her two-year old daughter.More news: Nadler Reacts to White House’s Refusal to Participate in Impeachment Hearings
Photographs showed a woman descending the steps, her face hidden by a pink blanket. She resigned that year, shortly after giving a newspaper interview about her decision to convert, saying she had become disillusioned with a lifestyle of drink, drugs and partying.
However, within Government there is an exceptionally dim view taken of this with Mr Flanagan in particular privately arguing strongly against Ms Smith being interviewed by Ryan Tubridy. I looked at her and she looked at me. "I think people in Dundalk are aware of that".
Under Irish law, citizens can, in principle, be prosecuted for terror offenses committed overseas, but strong evidence would have to be produced linking the defendant to specific crimes.
Smith has denied any involvement in terrorism following her deportation from Turkey.
She is now being detained at a South Dublin Garda station under the provisions of Section 30 of the Offences against the State Act, 1939 as amended.More news: Zelenskiy: Allies ‘can’t go blocking’ aid at time of war
The solicitor stressed that travelling to Syria was "in itself not a terrorist offence", before insisting that "there's absolutely no evidence that she's been in any terrorist organisation or terrorist group".
"She was calm and just seemed very relieved to be back - she was even talking about the rain in Dublin", the source said.
Another Dublin passenger, who asked not to be named, said he recognised her straight away.
But last month, Britain allowed several unaccompanied children of Britons to be repatriated from former Islamic State territory in Syria.More news: 'Faultless' Van Dijk deserves to win Ballon d'Or ahead of Messi - Gerrard