An Irish man who challenged the lawfulness of his detention in mandatory hotel quarantine has been released this afternoon.

The move follows receipt of documentation from his lawyers after the High Court earlier directed an inquiry into his detention.

Derek Jennings, 47, flew home from Israel on Friday to be with his dying father.

His father, who was diagnosed with cancer last year, collapsed last week and was taken to intensive care.

The court heard the man is in a critical condition and may die at any stage.

Mr Jennings, from Clondalkin in Dublin, began working with his employer in Israel on 22 February, where he was due to remain until May this year.

Two appeals by Mr Jennings against the requirement to quarantine were denied.

His lawyers asked the High Court to direct an inquiry into the legality of his continued detention at the Crowne Plaza Hotel near Dublin Airport in Santry.

They said there were compelling and overwhelming humanitarian considerations in this case.

Meanwhile, a healthcare worker who had arrived to work in Ireland from Israel, who had similarly challenged her detention in quarantine, has also been released.

Inbar Aviezer's case was due back before the High Court tomorrow. Her lawyers had argued that her detention was disproportionate and unlawful.

Inbar Aviezer

Both court cases will not now go ahead.

Earlier, Mr Jennings' senior counsel, Mícheál P O'Higgins, told the court his travel to Israel was certified as necessary by his employer and he was fully vaccinated against Covid-19 while in Israel.

He has also received a series of negative tests for Covid-19, including a negative result this morning.

Mr Jennings' father was diagnosed with cancer in 2019 and the court was told it was feared at that stage that he had only months to live.

Last Wednesday, he collapsed and was then taken to hospital where he remains in intensive care.

Mr Jennings' company, Tokyo Electron, made arrangements for him to fly home from Tel Aviv.

He booked his stay in the Crowne Plaza Hotel near Dublin Airport, as this was a prerequisite for him to board the flight.

Mr Jennings appealed the necessity to quarantine on humanitarian grounds. He said his father was dying and he needed to be with his family, but his appeal was denied.

Mr Jennings told his lawyers that his father is still in intensive care and no family members are permitted to enter, but they are hopeful that if he enters his final hours, family members might be allowed to spend a short time with him.

The court heard his father is in a very critical condition and may die at any stage.

Mr Jennings lives with his wife and children in Clondalkin in Dublin. He is the eldest of his siblings and the court heard his mother is very distressed and he wants to support her.

After the announcement by the Government that Israel is to be removed from the list of designated states, from which travellers will have to enter quarantine, Mr Jennings submitted a second appeal, but this too was also denied.

His lawyers said there were compelling and overwhelming humanitarian considerations in this case, and to require him to remain in detention for another 13 days, at an extremely difficult time for his family was disproportionate and unlawful.

Mr Jennings at home in Dublin this afternoon

They also argue the quarantining legislation is unconstitutional.

The court was told there was no evidence the appeals officer carried out any assessment of whether in Mr Jennings' situation he could quarantine at home or be permitted to see his father, and then return to the hotel.

They also argued that the officer failed to have regard to the reality that travellers from Israel represented a much reduced risk, and the Government had decided to remove it from the list of designated countries.

Mr Jennings' lawyers said the appeals officer's decision that there was insufficient evidence about the urgency relating to his father's situation was unreasonable and irrational given the context in which he had returned home urgently.

They also told the court it was not a matter for the appeals officer to dictate whether it was appropriate for a grieving and distraught family to gather together to comfort each other while their father was dying.