New stats reveal the number of children arrested for terrorism offences is highest since records began | Counter Terrorism Policing

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New stats reveal the number of children arrested for terrorism offences is highest since records began

The number of children arrested in relation to terrorism offences has reached its highest level since records began nearly 20 years ago – causing Counter Terrorism Policing to urge parents, friends and family to play their part in stopping the rise of young people radicalised by extremist content.

The Home Office’s quarterly release of statistics relating to the police’s use of powers under the Terrorism Act 2000 revealed there were a total of 181 arrests for terrorism-related activity in the year ending 31 June 2021, 49 (21%) fewer than in the previous 12-month period and the lowest annual total since 2011.

Of those 181 arrests, 24 were children under the age of 18, a record high of more than 13% of all arrests, and the largest number of children arrested in relation to terrorism offences since the Home Office started recording these statistics in 2002.

The overall number of people arrested in relation to terrorist activity has fallen significantly as a result of the Covid-19 pandemic, because CTP frequently use non-terrorism legislation to make arrests and disrupt terrorist activity, and the lockdown period has presented fewer opportunities for officers to do that.

But while fewer arrests have taken place, experts at CTP are concerned that online activity has continued at pre-pandemic levels, with terrorist groomers exploiting the fact that vulnerable people have spent more time online, isolated and without regular access supporting factors such as schools, social workers and mental health services.

There is particular concern about young people, with the new statistics showing that while arrests across every other age group have declined – children were once again the only demographic to show an increase.

The Senior National Coordinator for Counter Terrorism Policing, Deputy Assistant Commissioner Dean Haydon, said: “We are again having to appeal to parents, friends and family to play their part in protecting their loved ones against radicalisation, following another concerning proportion of young people being arrested by our officers in the last 12 months.

“It is thought that these increases are being driven largely by the sharp rise in young people arrested in relation to online extreme right wing terrorism (ERWT) activity.

“For the last year, we have warned about the impact that Covid-19 may have been having on the most vulnerable in our society, particularly children and those with mental health issues, as a result of a ‘perfect storm’ of factors which is making them more vulnerable to extremist influence.

“The pandemic has exacerbated the challenging circumstances and grievances within society that terrorists latch onto to promote their brand of extremism, it has stoked distrust in authority and most importantly is has made us all more isolated, making it more difficult for young and vulnerable people to access to the support services which they rely on to protect them from extremist influence.

“But while arrests and convictions may protect society from harm, they do nothing to reverse the worrying trends we are seeing – the only way to do that is to stop people from being radicalised in the first place.”

Last year, CTP launched a new dedicated website called ACT Early, designed to offer advice and support for parents and family members who think their loved one might be following a dangerous path towards extremism.
Research tells us that parents, family members and friends are the first to see the changes in behaviour which might indicate that a loved one is being radicalised, but analysis from 2019/2020 data shows just 2% of people we help through Prevent come to the programme because of concerns raised by those who know them best.

“It doesn’t have to be this way,” said DAC Haydon.

“We can help children move away from this dangerous path, but the earlier we catch it, the better chance we have of helping them in the long term.

“Asking for help is a difficult and emotional step, but we must see it for what it is – action which won’t ruin their lives but may well save them.”
If you are worried that someone you know is being radicalised, visit

For help and advice visit, or call the national Police Prevent Advice Line on 0800 011 3764, in confidence, and our specially trained Prevent officers will listen carefully to your concerns.