British citizen Matthew Hedges was sentenced to life in prison, for spying on the UAE, by a federal court in Abu Dhabi on Wednesday.
Mr Hedges, 31, a PhD student at Durham University in the UK, was convicted by the Federal Court of Appeal for attempting to procure sensitive information during a trip to the Emirates this year.
He appeared in court, accompanied by his wife, Daniele Tejada, and officials from the British Embassy to hear his sentence.
A life sentence includes a maximum of 25 years in jail and is followed by deportations for non-Emiratis. Mr Hedges will be deported upon completion of his sentence and was also ordered to pay all legal fees.
The court stated that his devices and research would be confiscated. Mr Hedges has the right to appeal within a maximum of 30 days.
The full statement from the court, translated from Arabic read:
"The Federal Appeals Court of Abu Dhabi sentenced Matthew Hedges, 31, to life imprisonment after being convicted of spying on the UAE and providing sensitive security and intelligence information to third parties. The court also ruled that he would be deported from the country after the execution of the sentence and would be charged the costs of the legal case. The court ordered the confiscation of all his equipment, devices, research and studies. The convicted person has the right to challenge the ruling with the State Security Department of the Federal Supreme Court within a maximum period of 30 days."
Last month, Mr Hedges was released on bail but will now be jailed again until his appeal before the Federal Supreme Court.
UK Prime Minister Theresa May described the verdict as disappointing and said she would raise the case at the highest levels of the UAE government.
"We are of course deeply disappointed and concerned at today's verdict," she told parliament.
Mr Hedges was first arrested at Dubai International Airport in May after an Emirati man told police he had been asking for sensitive information.
Prosecutors later said he had been attempting to secure confidential information to potentially pass to a foreign state — although they did not mention the country.
Attorney General Dr Hamad Al Shamsi said that, during questioning, Mr Hedges admitted to the claims against him, which were "identical to evidence and information gained from his own electronic devices and investigations conducted by the UAE’s security agencies".
Ms Tejada previously denied the charges in an interview with The Sunday Times.
“Matt is not guilty of what he is being charged with,” she said.
Ms Tejada said Mr Hedges, whose family used to live in Dubai, was “fascinated by Emirati security and threw himself into his research”, which focused on relationships between different tribes in the UAE.
Dr Anwar Gargash, Minister of State for Foreign Affairs, previously said that the case had been "extensively discussed with UK colleagues" over the past five months.
He also wrote on Twitter that "unusual and embarrassing revelations about friends and allies" had come to light as a result.
Dr Gargash also said there had been a "reluctance of UK authorities" to address the matter through the usual channels.