The phrase ‘aggravated activism’, according to His Majesty’s Inspectorate of Constabulary and Fire & Rescue Services (HMICFRS), means activity that:
[...] seeks political or social change but involves ‘unlawful behaviour or criminality [or causes] an adverse impact on community tensions or businesses
First appearing in inspectorate reports and National Police Chiefs’ Council (NPCC) guidance around 2020, the term effectively replaced the older and much criticised category of ‘domestic extremism’. However, its use has been more limited than ‘domestic extremism’, and it co-exists with other labels applied to criminalised activism. Partly, the decision about whether the activism falls under this definition depends on the type of political motivation behind it.
HMICFRS created two different levels of aggravated activism: Low and High.
Low-level aggravated activism
The HMICFRS matrix defines the ideological outcomes for low-level aggravated activism as resulting in either
a change to the behaviour of the population (e.g. not to use products tested on animals) or change to specific government policy (e.g. fracking)’, or ‘the change of economic system or the insistence that particular section of society (e.g. race or religion) conform to certain values.
This happens if activists take part in ‘unlawful or criminal activity’ and ‘activity beyond peaceful protest’, something that HMICFRS does not fully explain. This seems to include direct action and civil disobedience, despite the fact that both had previously had some protection under the Human Rights Act 1998.
High-level aggravated activism
Although the HMICFRS report focuses on threats from right-wing groups, it impacts anyone with radical politics; in that the matrix identifies those who seek more radical change (e.g. anarchists) as a higher-level threat, saying the aim of ‘dismantling of the state or rule of law’ is a ‘substantial’ ideological outcome.
This means that the matrix places activism involving more radical, progressive ideals in the same ‘intended ideological outcome’ category as violent racism that 'seeks the death or subjugation of a specific group or significant proportion of the population (e.g. a race or religion)'.
Any action that successfully targets companies and economic interests also puts those campaigners firmly in the same high-level category. The matrix defines this as:
Criminality or activity that has i) a significant impact on community tensions that could lead directly to violence against that community or ii) a significant impact on UK businesses.
The implication is that the state considers activism targeting business interests (even activism that may not be criminal) to be just as dangerous as seeking to incite racist violence.
Subsequent HMICFRS reviews in 2024 and 2025 also used the phrase ‘high-level aggravated activism’. The NPCC’s Counter-Terrorism Case Officer Guide provides further definition, distinguishing low-level activism that ‘crosses the threshold’ into ‘high-level threat’.
This guide also suggests that those committing either ‘low level’ or ‘high level’ aggravated activism may be referred to PREVENT, the government organisation that supposedly aims to stop people becoming ‘terrorists’:
a) Potentially any activity falling within the High Level Aggravated Activism designation, where it is not of Interest to PURSUE.
b) Potentially any Low Level Aggravated Activism, where the basis of activism itself was in support of an issue that would be considered ‘hateful’ within UK legislation
Although the Home Office told Parliament in 2020 that 'the Government does not use the terminology of ‘aggravated activism’ in relation to public order' , the phrase nonetheless appears in a Home Office report, Protecting Our Democracy from Coercion, linking it to ‘extreme protest movements’.
Police job adverts have also adopted the terminology. In October 2025, the National Police Co-ordination Centre advertised for an intelligence researcher and an intelligence analyst, whose duties included to ‘disrupt and arrest offenders involved in aggravated activism’.
Netpol has stated that aggravated activism effectively just repackages domestic extremism in an attempt to legitimise ‘broad intelligence-gathering on campaigners beyond peaceful protest’.
Netpol has also described the label as ‘vague and expandable’, warning that it blurs dissent with security threat and serious crime.