Three terror plots have been foiled during the coronavirus pandemic in the UK, counter-terrorism chiefs revealed, despite a drop in arrests during the period. Two Islamist plots and one rightwing terror plot were thwarted, bringing the total number of foiled attacks since March 2017 to 28, said the counter-terrorism policing network. The revelation was made as official figures from the Home Office showed the number of arrests for terrorism-related activity fell by 34% in 2020, the lowest level in nine years, although this was pinned on an overall reduction in crime during the pandemic. The statistics also reveal that one in five people behind bars for terrorism offences in Britain last year were rightwing extremists, the highest proportion since records began, while a rise in arrests was only recorded for the under-18s category. Dean Haydon, a deputy assistant commissioner and senior national coordinator for counter-terrorism policing, said: “These statistics tell me two things. Firstly, that despite facing unprecedented challenges brought about by the pandemic, counter-terrorism policing continued to keep the public safe by making 185 arrests across more than 800 live investigations – stopping three possible terror attacks in the process. “And secondly, that while the rest of us have been focused on protecting ourselves and our families from this terrible disease, terrorists have not stopped planning attacks or radicalising vulnerable people online.” Since March 2017, counter-terrorism police and UK intelligence services have stopped 28 attacks; 18 were Islamist related, nine were classed as rightwing terrorism, and one was labelled “left, anarchist or single-issue terrorism”. The number of arrests for terrorism-related activity fell from 282 to 185 in the year to December, the lowest since 2011. Haydon said it was “worrying” that children under 18 were the only age category where an increase was recorded – rising from 11 to 17 cases. That is a total of 10% of all arrests, a rise from 4% in the previous 12 months. The number of white people arrested was 89, compared with 63 people of Asian appearance and 15 people of black appearance, the report said. There were 209 prisoners in 2020 of whom 42 were classed as holding “extreme rightwing” views, up from 18% the previous year. While 75% of prisoners were classed as having Islamist extremist views, the number of inmates recorded as holding this ideology fell from 177 to 156 in the 12-month period. In all 31 convicted terrorists were released from jail as well as 11 suspects who had been held in custody but not sentenced in the year to September, according to the data. Figures to December are not yet available. Of the 185 arrested in 2020, 56 (30%) led to a charge, 48 of which were terrorism related. And 73 suspects (39%) were released on bail or released under investigation, meaning they were not subject to any restrictions while police inquiries continued. A further 13 (7%) faced other action such as a caution or being recalled to prison, while 40 suspects (22%) were released without charge.