Counter Terrorism
Public Order Public Safety — Authorised Professional Practice
Summary
This section of the College of Policing Authorised Professional Practice provides guidelines for police officers on counter terrorism (CT) in relation to public order and public safety (POPS) events. It emphasizes the need for thorough planning to assess potential terrorist threats during events and outlines the frameworks for deploying resources, command, and operational tactics to mitigate these threats. Key roles include the CT security coordinator (CT SecCo) and counter terrorism security advisors (CTSAs), who provide specialist guidance on security strategies. Officers are instructed to be aware of threat levels set by the Joint Terrorism Analysis Centre (JTAC) and the implications for policing preparedness. Additionally, the section underscores the importance of training and familiarization with CT command structures and emergency protocols in the event of an attack, ensuring all involved officers understand their roles and responsibilities.
Key principles
- 1Assess the potential threat of terrorism on POPS events.
- 2Deploy resources and tactics proportionately in relation to threat levels.
- 3Establish clear command protocols for incidents involving CT.
- 4Utilize the expertise of CT SecCo and CTSAs in planning and execution.
- 5Include contingency plans for police roles during potential attacks.
- 6Incorporate Stay Safe principles in operational orders.
Defined terms
- CT security coordinator (CT SecCo)
- A role focused on developing security plans for events to mitigate terrorist threats.
- Counter terrorism security advisors (CTSAs)
- Advisors responsible for providing CT protective security guidance for specific industry sectors.
- Stay Safe principles
- Guidelines for the public to follow in the event of a terrorist attack.
Full guidance
This page is from APP, the official source of professional practice for policing.
Public order public safety (POPS) planners and commanders should assess the potential threat and impact of terrorism on POPS events and operations.
POPS planners and commanders should also make provisions in the event plan to mitigate potential terrorist threats and the associated impact that may be relevant to an event or operation. This plan should consider:
the current threat picture (including attack methodologies) and the impact on the POPS event(s) or operation(s) * the proportionate deployment of resources and tactics, including those linked with counter terrorism (CT) policing, to mitigate the threat to a POPS event or operation * the police role in the event of an attack at a POPS event or operation and any relevant contingency plans
CT policing in the UK is delivered through a network. Information on the capabilities that each component of the network provides is available through the Counter Terrorism Policing website(opens an external website in the same tab) .
POPS commanders and planners should understand the role of CT policing capabilities and how to access relevant parts of regional and/or national capability – for example, the National Coordinators Office for Protect and Prepare, and the National Counter Terrorism Security Office (NaCTSO).
UK threat levels from international terrorism are set by the Joint Terrorism Analysis Centre (JTAC). Further information on the threat levels is available through the MI5 website(opens an external website in the same tab) .
Planners and commanders should be aware of the threat level and its impact on general policing preparedness and plans. For example, a higher threat level may have an impact on how an event is staged and/or the availability and deployment options associated with some police resources. Where an event or operation also involves an armed operation, a clear command protocol should be established between the relevant disciplines.
POPS commanders and planners should assess the impact associated with the threat level. They should also access and assess the impact of Security Review Committee updates and advisory messages, as these can provide additional and more specific protective security-informed advice and guidance that can help inform planning and command activity.
Gold POPS commanders should also consider the use of specialist support in the form of a CT security coordinator (CT SecCo) or CT safety advisors (CTSA).
CT security coordinator (CT SecCO)
Some POPS events or operations may involve a CT SecCo. The role of a CT SecCo is to mitigate the threat of terrorism to an event by:
developing a security plan that supports a gold POPS commander’s overarching strategy * coordinating all aspects of protective security (primarily from a CT perspective) * providing specialist advice on security assets (including operational deployment) and attack methodologies
Events where a gold POPS commander should consider a CT SecCo include:
public military events * party political and other high-security conferences * high-profile ceremonial and civic events * events involving protected persons * crowded place events, including high-profile sporting events
A gold POPS commander may also consider a CT SecCo for other events where their appointment will help support safety and security – for example, if it is proportionate to the threat level at the time.
POPS commanders and planners should consider the following, in consultation with a CT SecCo.
The criteria for when to appoint a CT SecCo, and the process for how (this may vary across forces and regions). * If appointed, the development of clear protocols that are understood by POPS planners, POPS commanders and the CT SecCo, such as the following. * Outlining the interface between CT SecCo and POPS planning. How does the security plan influence tactical and operational planning and vice-versa? It may also be appropriate for the CT SecCo to attend relevant external meetings, such as the safety advisory group (SAG). * Articulating the position of the CT SecCo in the chain of command. Is it a specialist advisory role to all levels of command and/or a distinct command position with allocated resources (for example, bronze security)? * A shared understanding of the security implications of POPS tactics and capabilities. * A shared understanding of the POPS implications of security-related tactics and capabilities (for example, impact on crowd dynamics).
Further information on CT SecCo is available via the Knowledge Hub(opens an external website in the same tab) (you will need to log in).
Counter terrorism security advisors (CTSAs)
The primary role of CTSAs is to provide help, advice and guidance on all aspects of CT protective security to specified industry sectors. CTSAs are also responsible for the provision of protective security advice to crowded places – for example, shopping centres, sporting stadiums, pubs and bars or transport hubs.
CTSAs also work with local authorities and businesses to identify and assess sites that may be vulnerable to terrorist attack. They advise them, as well as other organisations and professional bodies, about CT protective security guidance that should be incorporated into their general crime prevention plans, advice and guidance.
POPS commanders and planners should consider CTSAs, as they:
work in support of a CT SecCo to mitigate the vulnerabilities identified in the CT SecCo plan for any event * may have established relationships and may assist with advice and guidance that can better protect event locations * provide specialist CT awareness training in line with existing CTSA capabilities, to increase the readiness of sites to respond appropriately to a terrorist attack and to increase vigilance
Contingency plans should include the role of police if there is a terrorist attack at a POPS event or operation. All police officers involved in the operation should be briefed regarding their role and responsibilities in the event of a terrorist attack and should be aware of Stay Safe principles. Guidance and an aide memoire(opens an external website in the same tab) are available to all police officers on College Learn (you will need to log in).
POPS commanders are responsible for ensuring that operational orders and briefings are accurate and contain all relevant information. POPS commanders should include the Stay Safe principles in operational orders and/or briefings.
POPS commanders should also be aware of CT command and control structures that cover various terrorism-related scenarios. These include CT-specific roles, such as the assistant commissioner of specialist operations (ACSO), senior national coordinator (SNC) and CT commanders.
POPS planners should understand the extent and potential impact of any protective security measures and arrangements that owners and operators of publicly accessible locations and/or organisers may put in place for an event.
POPS planners and commanders may provide proportionate and relevant advice to organisers, owners and operators.
Engagement related to CT should be factored into the overarching engagement and communication strategy. Examples could include:
, including the availability of information and advice on various aspects of protective security from NaCTSO
the National Police Chiefs' Council's (NPCC) Run, Hide, Tell briefings(opens an external website in the same tab)
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Read the full APP guidanceSource: College of Policing — Authorised Professional Practice · Crown copyright, licensed under Open Government Licence v3.0. Summary fetched 2026-06-27.