UPDATED - National Counter Terrorism Security Office NaCTSO - New Crowded Places Guidance

Source - National Counter Terrorism Security Office (NaCTSO) Crowded Places Guidance 2017.

UPDATED - Attack methodology: Chemical, Biological and Radiological (CBR) attacks including ACID or CORROSIVE Substances.


As with other threat methodologies you may receive no prior warning of a CBR incident. An incident may be obvious such as a corrosive liquid being thrown, at which point affected persons should be immediately directed to follow the REMOVE, REMOVE, REMOVE protocol

Remove, Remove, Remove Protocol for Acid attacks

Full updated guide available here - On the NaCTSO site

National Counter Terrorism Security Office (NaCTSO) recently published counter terror guidance for crowded places covering 12 different industry sectors across various scenarios and aimed at security professionals or those with responsibilities for security.

The threat we face from terrorism is significant. As we have seen in the UK, across Europe and sadly once again in Spain yesterday, attacks can happen at any time and any place with little warning to those impacted. Understanding the threat we all face and of the ways we can mitigate it can help keep us safer. Everyone can play a role in this effort by taking steps to help boost their protective security whether that’s at work, at home or away; when travelling, when out and about or just simply when online. Being aware of your surroundings is critical.

Having better security for all these areas makes it harder for terrorists to plan and carry out attacks. It also helps reduce the risk of other threats such as organised crime.

The NaCTSO document provides protective security advice across a number of sectors and scenarios. It has been developed through extensive research and analysis of previous incidents, and the assessment of current known threats. It covers the key forms of protective security: physical, personnel, cyber and personal, and helps give guidance on how different sectors can act to help make their business, institutions or organisations safer.

Sectors covered -

Night-time economy

Cinemas and theatres

Stadia and arenas




Places of worship

Hotels and restaurants

Major events

Visitor attractions

Commercial centres


This guidance is primarily aimed at those in the security sector and those who own or run businesses, organisations, amenities or utilities. Some of the terminologies may be unfamiliar to some readers. However, we hope the advice can also be of use to anyone who wishes to improve their own security. To deliver protective security effectively a security plan is essential along with a full risk assessment. It is important to identify an individual responsible for security and to identify what are the important assets, people,

products, services, processes and information within your organisation. You can then begin to introduce mitigation to reduce vulnerabilities. A strong security culture must be supported and endorsed from a senior level.

An excellent piece of work with practical and implementable checklists covering -

Personnel Security


Access control

Bomb threats

Emergency and business continuity


Cyber security

Search planning

Crisis response kits

Good housekeeping

Suspicious behaviour reporting

Deputy Assistant Commissioner Lucy D’Orsi said:

Terrorist attacks are rare in the UK, but recent events have shown that an attack could happen anywhere and without warning. Those locations either public or private where large groups of people gather, for reasons such as entertainment, business, transportation, sporting or social occasions, have always been preferential targets for terrorists. Terrorism has evolved in recent times, with many conflicts overseas influencing terrorist acts in the UK. Social media, in particular, is being manipulated to incite, inspire and enable groups and individuals to target these crowded places.

The guidance can be downloaded here