Two men have been arrested under the Official Secrets Act amid reports that a parliamentary researcher spied for China.
The researcher has links to several senior Tory MPs and has been arrested on suspicion of spying for China, according to The Sunday Times.
He was arrested along with another man by officers on 13 March, the newspaper reported.
The researcher, who is in his 20s, is understood to have had links to security minister Tom Tugendhat, foreign affairs committee chairwoman Alicia Kearns and other senior Tory MPs.
The MPs he is linked to are privy to classified or highly sensitive information.
A senior Whitehall source told The Sunday Times: “This is a major escalation by China. We have never seen anything like this before.”
Officers from the Metropolitan Police’s Counter Terrorism Command, which oversees espionage-related offences, are investigating.
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One of the men, in his 30s, was arrested in Oxfordshire on 13 March, while the other, in his 20s, was arrested in Edinburgh, Scotland Yard said.
“Searches were also carried out at both the residential properties, as well as at a third address in east London,” a statement from the force said.
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Both men were held at a south London police station until being bailed until early October.
Mr Tugendhat is said not to have had any contact with the researcher since before he became security minister in September last year.
Ms Kearns declined to comment, adding: “While I recognise the public interest, we all have a duty to ensure any work of the authorities is not jeopardised.”
Image: The researcher has links to Tory MP Tom Tugendhat, pictured. Pic: AP
The Inter-Parliamentary Alliance on China pressure group said it was “appalled at reports of the infiltration of the UK Parliament by someone allegedly acting on behalf of the People’s Republic of China”.
Downing Street said it does not comment on security matters.
The House of Commons has been contacted.
Conservative MP Iain Duncan Smith has tweeted: “If true, this is very serious and of great concern. It shows that we cannot afford to be complacent about the threat that the CCP [Chinese Communist Party] poses to the function of Parliament and our democratic way of life.”
China has ‘penetrated the UK economy’
In July, the Intelligence and Security Committee (ISC) said China targets the UK “prolifically and aggressively” in a way that poses a “challenge” for British intelligence agencies.
The ISC, made up of cross-party MPs, published a report saying China had managed to “successfully penetrate every sector of the UK’s economy”.
A letter was sent to MPs by Speaker Sir Lindsay Hoyle who said MI5 warned him a woman called Christine Lee has been “engaged in political interference activities on behalf of the Chinese Communist Party, engaging with members here at parliament”.
Lee, 59, who denies wrongdoing and is suing MI5, had donated almost £500,000 to Barry Gardiner, Labour’s former shadow international trade secretary.
Since the local elections Reform UK has had no shortage of good polls.
But a new one suggests Nigel Farage’s party has a chance not only of winning the next election, but of claiming a decent Commons majority, too.
In February, Reform topped a Sky News/YouGov poll for the first time, with Nigel Farage’s party edging in front on 25%, Labour pushed into second on 24%, with the Tories on 21%.
But a fresh one from Ipsos puts Reform on 34%, nine points ahead of Labour on 25%, with the Conservatives a distant third on 15%.
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16:03
Zia Yusuf: I sent a tweet I regretted
While the other parties are flatlining, Reform appears to be pushing boundaries.
Were these figures to be replicated across the country at a general election, with every constituency behaving the same way, then Reform could win as many as 340 seats, giving it a majority of 30, Sky News analysis suggests.
Labour could be reduced to 176 seats, down 236 on last year’s election, while the Tories would hit a record low of 12 seats.
But polling should always be taken with a pinch of salt and with the firm acknowledgement that there is not an election coming any time soon.
Conservative backbenchers might also tell you publicly that opinion polls are notoriously difficult to translate into seat numbers because voting percentages in individual constituencies can vary hugely from the overall average.
But the truth is that the symbolism of Reform UK topping another poll is likely to be noticed by MPs from all parties, especially backbench Conservatives who have actively been hoping their leader, Kemi Badenoch, can help them climb the polls and bring the party back into public favour.
Politics is a brutal game and when it comes to toppling underwhelming party leaders, the Tories are more ruthless than most. One wonders how many of these polls Mrs Badenoch’s party will allow her to endure.
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As the party approaches a year since its major victory, it will not have much to celebrate if these numbers are anything to go by.
According to this survey, only 19% are satisfied with the job Sir Keir Starmer is doing as prime minister, with 73% dissatisfied.
And the figure of 25% of voters intending to vote Labour is a level not seen since October 2019.
While abstract to much of the public, polling can often shape not only the chatter inside Westminster but how and when plots by MPs begin.
For Reform UK, this is a much-needed morale boost after a surprise resignation by their former Chairman Zia Yusuf, and then an almost immediate U-turn back into the party.
And Kemi Badenoch – who said during her leadership campaign that the Conservatives needed to go back to first principles and that this would take time – will be wondering, seven-and-a-half months after winning the leadership, how much time she really has left.
Ipsos interviewed a representative probability sample of 1,180 British adults aged 18+, via the Ipsos UK KnowledgePanel. Data was collected between 30 May-4 June 2025.