Counter Terrorism Command (SO15)

Counter Terrorism Command (SO15)
Name	Counter Terrorism Command (SO15)
Formation	2006
Type	Specialist unit
Headquarters	London
Jurisdiction	United Kingdom
Parent organisation	Metropolitan Police Service
Chief	Commander of Counter Terrorism Command
Website	Metropolitan Police Service

Counter Terrorism Command (SO15) is the specialist unit within the Metropolitan Police Service responsible for investigating and preventing terrorism-related offences in the capital and providing national investigative support. It operates alongside national bodies such as the Counter Terrorism Policing network, Security Service (MI5), and Home Office partners to detect, disrupt and prosecute threats linked to international and domestic extremist actors. SO15 combines intelligence, covert investigation, protective security and digital forensic capabilities to address a spectrum of threats that intersect with aviation, maritime, transport and public space security.

History

Counter Terrorism Command traces its lineage to earlier specialist units in the Metropolitan Police Service such as the Special Branch and the Anti-Terrorist Branch (SO13), which were reconfigured after the 7 July 2005 London bombings and evolving legislative frameworks including the Terrorism Act 2000 and Terrorism Act 2006. The formal creation of the unit in 2006 followed strategic reviews influenced by inquiries like the Lord Hutton, Chilcot Inquiry and public responses to incidents such as the 2004 Madrid train bombings and the 2005 London bombings. Over successive counter-terrorism strategies including those shaped by the CONTEST programme, SO15 absorbed investigative, protective and intelligence functions previously dispersed across units such as SO12 and SO13.

Organisation and Structure

SO15 is structured around specialist directorates coordinating with regional hubs of Counter Terrorism Policing and national partners including British Transport Police and National Crime Agency. Core components typically include intelligence analysis teams linked to the National Counter Terrorism Policing Headquarters, investigation squadrons aligned with macro-threat portfolios (international terrorism, domestic extremism, hostile reconnaissance), covert capabilities integrated with Special Branch residua, and forensics cells collaborating with the forensic science community and Home Office Scientific Development Branch. Commanders liaise with bodies such as the Cabinet Office, Ministry of Defence, Directorate of Military Intelligence elements and local borough commanders to align operations. Liaison officers work with international partners including Europol, Interpol, Federal Bureau of Investigation, and national agencies in France, Germany and the United States.

Roles and Responsibilities

Primary responsibilities encompass investigating terrorism offences under statutes like the Terrorism Act 2000; leading complex criminal investigations; coordinating pre-charge disruption under judicial arrangements; providing protective security advice to critical infrastructure such as Heathrow Airport, City of London, and the United Kingdom Parliament estate; and contributing to national strategy implementation under CONTEST. SO15 advises on threat assessments produced with the Joint Terrorism Analysis Centre and executes arrest and search warrants often supported by Specialist Firearms Command (CO19), National Tactical Response Group elements and partner agencies. The unit also undertakes network analysis, countering radicalisation pathways, and supporting prosecutions pursued by the Crown Prosecution Service.

Operations and Notable Cases

SO15 has been central to investigations following high-profile incidents including the response to the 7 July 2005 London bombings aftermath, investigations into plots linked to Islamist terrorism, prosecutions arising from the 2017 Westminster attack, and inquiries connected to the 2013 murder of Lee Rigby—where cross-agency evidence development involved the Crown Prosecution Service and Independent Office for Police Conduct. SO15-led operations have executed large-scale arrests, surveillance operations, and international extradition collaborations in cases tied to networks previously disrupted through coordination with MI6 and FBI liaison teams. Notable operations have also addressed far-right violent extremism and lone-actor plots investigated alongside regional counter-terrorism units and specialist prosecuting authorities.

Training, Capabilities and Equipment

Personnel within SO15 undertake specialist training alongside units such as Specialist Firearms Command (CO19), the National Police Chiefs' Council programmes, and national colleges including the College of Policing. Training covers covert investigation techniques, digital forensics, cyber-investigation aligned with National Cyber Security Centre guidance, hostage negotiation coordination, and protective security for venues like Wembley Stadium and mass gatherings. Technical capabilities include advanced surveillance systems, mobile device exploitation kits, biometric analysis support with the UK Biometric Office and forensic laboratories accredited by the Forensic Science Regulator standards. Equipment and interoperability are maintained through procurement frameworks managed with the Home Office and national police procurement bodies.

Legal Framework and Oversight

SO15 operates within statutory frameworks provided by Acts of Parliament including the Terrorism Act 2000, Counter-Terrorism and Security Act 2015, and the Investigatory Powers Act 2016. Oversight and accountability are exercised by inspectors and commissioners such as the Independent Office for Police Conduct, the Independent Reviewer of Terrorism Legislation, and parliamentary mechanisms including the Home Affairs Select Committee. Judicial authorisation for intrusive powers involves courts and designated commissioners, while civil liberties groups such as Liberty (advocacy group) and nonprofit organisations engage in oversight dialogue and legal challenge.

Public Engagement and Community Liaison

SO15 engages communities through programmes coordinated with local police boroughs, community policing teams, and initiatives like the Prevent (UK programme) strand of CONTEST to counter radicalisation and build resilience in diverse communities including faith and student organisations. Liaison with community leaders, faith institutions such as diocesan bodies and mosques, transport operators, and event organisers informs protective measures and community reassurance after incidents. Public communication strategies are coordinated with the Metropolitan Police Service press office, government communication units, and devolved administrations to provide timely advice, drive reporting of suspicious activity via channels like Action Counters Terrorism, and maintain public confidence.

Category:Law enforcement agencies of the United Kingdom