Event Security Planning: A Practical Guide for UK Organisers

Event security planning is the process of identifying the risks specific to your event, then putting the right people, procedures and physical measures in place to manage them. It begins with a written risk assessment, covers everything from crowd flow to emergency evacuation, and finishes with a debrief. Done well, most guests never notice it. Done badly, it becomes the story afterwards.

The scale changes between a village fete, a corporate conference and a festival. The framework does not.

What does event security planning involve?

Four things: assess, resource, prepare, review. You assess the threats your event realistically faces, resource the plan with licensed staff and equipment, then write procedures down so everyone knows their role before the gates open. Most organisers get that third step wrong. They hire guards, assume that is the plan, and commit nothing to paper. A plan that lives in one person's head is not a plan.

How do you carry out an event risk assessment?

Start with the profile of the event. Who is attending, how many, and for how long? Is alcohol being served? Is there a public figure present, or a political dimension that could attract protest?

Then work through the categories that apply almost everywhere: overcrowding and crush, unauthorised access, theft, aggressive behaviour, medical emergencies, fire, adverse weather and traffic movement. For each, record the likelihood, the impact and the control measure. Involve the venue early, because many sites already hold a fire risk assessment, a capacity certificate and agreed evacuation routes. On licensed premises, the local authority and police may want sight of your plan through a Safety Advisory Group.

How many security staff does an event need?

There is no single ratio that applies everywhere, and any provider quoting one before asking about your event should be treated with caution. Numbers depend on capacity, layout, entry and exit points, whether alcohol is served, and the hours you run.

Licensing matters just as much. Anyone carrying out licensed security work must hold a valid Security Industry Authority licence, and door supervision roles require that specific licence. Ask for licence numbers in advance rather than on the day. A reputable provider supplies them without being chased, along with proof of insurance and ideally ISO accreditation. Our security services team can advise on realistic staffing.

What does Martyn's Law mean for event organisers?

The Terrorism (Protection of Premises) Act 2025, widely known as Martyn's Law, received Royal Assent on 3 April 2025. It creates two tiers. Premises and qualifying events reasonably expecting 200 to 799 people at the same time fall into the standard tier and need simple procedures covering evacuation, invacuation, lockdown and communication. Those expecting 800 or more sit in the enhanced tier and must also document public protection measures.

The Government has indicated an implementation period of at least 24 months from Royal Assent, so the duties are not yet in force. That is no reason to wait. Build the procedures in now and compliance will be straightforward later. For the wider picture, see our guide to the top security risks for commercial properties.

How do you manage entry, crowds and exit?

Entry is where most problems are either prevented or created. Queues should never spill into a road, and bag search points need enough staff that the search is genuine rather than symbolic. Wristbands, passes and colour-coded zones make it obvious who belongs where. Inside, keep sightlines clear. On outdoor sites without fixed infrastructure, mobile solar CCTV towers can cover perimeters, car parks and back-of-house areas without a mains supply.

Exit deserves as much thought as entry. Everyone leaves at once, in the dark, often after drinking, and a transport network outside your control becomes part of your problem. Stagger the finish, light the routes, and keep staff in place until the site is clear.

What happens after the event?

Two jobs remain. Log every incident, however minor, while it is fresh. Then make the venue usable again. Post-event cleaning and any repairs picked up during pack-down are far easier when planned in advance rather than scrambled the next morning, which is one reason many venues prefer a single supplier across security, cleaning and facilities management.

Frequently asked questions

Do I need SIA licensed staff for a private event?

If the security activity is carried out under contract, yes. Exemptions exist for in-house staff at some premises, but they are narrower than most organisers assume. If you are paying a company, expect licensed officers.

How far in advance should event security be booked?

For a small event, a few weeks is usually workable. For anything larger, or anything during a busy period such as December, three to six months is more realistic. Booking early also leaves time for a site visit, which is worth more than any phone call.

Does event security cover first aid and stewarding?

Not automatically. Stewarding, medical cover and licensed security are distinct roles. Confirm in writing which functions your contract includes and which you must arrange separately.

What should an event security plan document contain?

At minimum: the risk assessment, staffing numbers and licence details, a site plan showing entry, exit and emergency routes, communication and escalation procedures, evacuation and lockdown arrangements, and named individuals responsible for each. Keep it short enough that people read it.

Planning an event and want a second opinion on your arrangements? Get in touch with the Force8 team for a no-obligation conversation about your venue, your audience and the cover you need.