The report, compiled by parliament's powerful Intelligence and Security Committee (ISC), questioned: "whether Government took its eye off the ball on Russia, finds that they underestimated the response required to the Russian threat and are still playing catch up".
The British parliament's intelligence and security committee said in a report published on Tuesday that Russia had interfered in the 2014 Scottish independence referendum but it had not seen hard evidence of Russian meddling in the Brexit vote.
The Kremlin was quick to deny that Russian Federation had interfered in any foreign countries. But, instead, the committee turned its biggest guns on its own government, blasting the political leadership and the intelligence services for having "actively avoided" looking into obvious suspicions of interference by Vladimir Putin's government.
But the allegations are raising questions about the extent of Russian influence on British society.
The government's failure to conduct a probe at the time or since - and therefore the committee's inability to conclude whether or not Russian Federation had meddled in the referendum - has created something of a diplomatic embarrassment for Britain.
The report casts the United States and Britain as gripped by anti-Russian hysteria.
However, the report will likely disappoint observers who expected the ICS to detail how far Russian Federation interfered in the bitterly contested Brexit Referendum of 2016.
"There has been no assessment of Russian interference in the European Union referendum and this goes back to nobody wanting to touch the issue with a 10-foot pole", committee member Stewart Hosie said, demanding that such a study be done and the public informed. Russians with "very close links" to Putin are "well integrated into the United Kingdom business, political and social scene - in "Londongrad" in particular," the report said.
"So if this new register is brought into effect, of course it is not going to stop countries like Russian Federation from sending covert operatives to the United Kingdom to undertake intelligence operations, but it does make it possible, more realistically, to prosecute the people who are supplying them with information - their agents". "Russia is a top national security priority".
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That effort, named for a four-year-old boy who was killed by a stray bullet, sent about 225 federal agents to the city. Videos taken by bystanders show unidentified federal agents grabbing individuals and pulling them into unmarked vans.
Evidence of the claims in the report were redacted by the committee.
The report was originally submitted to Johnson on October 17.
In a line critical of the response of British security services to counter Russian meddling, the ICS said: "was not immediately apparent how these various agencies and organisations are co-ordinated and indeed complement each other". The gambit failed when a renegade Conservative was chosen to head the committee with backing from opposition parties.
The report, which was due to be published before the 2019 general election but faced months of delays, said there is "credible open source commentary" suggesting Russian Federation used influence campaigns during the independence referendum campaign in 2014.
Asked about dirty Russian money, Shapps said: "This is not the place to come and launder money".
It called for better coordination with Britain's Western allies, and said Britain should be ready to lead worldwide action and should work to develop new rules on "offensive cyber" operations.
She also slammed the report as "Russophobia".
Just last week, UK Foreign Secretary Dominic Raab said "Russian actors" had tried to interfere in the UK's 2019 general election, a charge Russia had since denied.
The report also said that social media companies "hold the key and yet are failing to play their part", adding that the government should "name and shame those which fail to act".