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UK security industry glossary: key terms explained

Learn the terminology used across the UK private security industry for security jobs, training, and licensing.

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A
  • Access control

    A security measure that regulates who can enter specific areas or access certain resources, typically using keycards, biometrics, or codes.

  • Access control systems (ACS)

    Electronic systems that manage and monitor entry to buildings or areas, including card readers, keypads, and biometric scanners.

  • ACT security certificates

    Qualifications provided by ACT (Awards for Training and Higher Education) for various security roles and specialisations.

  • Active shooter response

    Specialised training and procedures for responding to armed attackers in public or workplace settings, focusing on evacuation, hiding, and last resort actions.

  • Advanced first aid certificate

    A higher-level first aid qualification that covers more complex medical emergencies and trauma care beyond basic first aid.

  • AI-powered surveillance

    Security systems that use artificial intelligence to automatically detect suspicious behaviour, recognise faces, or analyse patterns in CCTV footage.

  • Airport screening procedures

    Security protocols used at airports to screen passengers, baggage, and cargo for prohibited items and potential threats.

  • Airport security

    Comprehensive security measures implemented at airports to protect passengers, aircraft, and facilities from various threats including terrorism.

  • Airside/landside security (airports)

    Airside refers to secure areas beyond passenger screening; landside covers public areas before security checkpoints, each requiring different security protocols.

  • Alarm responder

    A security professional who responds to activated alarms at various locations, investigating potential breaches or emergencies.

  • Alcohol licensing laws

    UK legislation governing the sale and consumption of alcohol, including licensing requirements for premises and designated supervisors.

  • ANPR (automatic number plate recognition)

    Technology that automatically reads and records vehicle registration plates, commonly used for access control and law enforcement.

  • APLH (award for personal licence holders)

    A qualification that allows individuals to authorise the sale of alcohol in licensed premises under the Licensing Act 2003.

  • Area relief officer

    A security officer who covers multiple locations within a specific area, providing temporary coverage for absent staff or additional support.

  • Armed security guard

    A security professional authorised to carry firearms or other weapons, typically working in high-risk environments or protecting valuable assets.

  • Asset protection

    Security measures designed to protect physical and intellectual property, including inventory, equipment, and confidential information.

  • Assignment instructions (AIs)

    Detailed written instructions provided to security officers outlining their specific duties, procedures, and responsibilities for a particular site or role.

  • Automated security response

    Technology-driven security systems that automatically respond to threats or breaches without human intervention, part of unmanned guarding solutions.

  • Awarding organisation/body

    Official bodies like Highfield, Pearson, or Qualsafe that accredit training providers and award qualifications required for SIA licences.


B
  • Back-of-house security (hotels/events)

    Security operations focused on non-public areas such as staff zones, delivery areas, and service corridors in hotels or event venues.

  • Bar security

    Specialised security services for licensed premises, focusing on crowd control, preventing underage drinking, and managing alcohol-related incidents.

  • Behavioural analysis software

    Technology that analyses human behaviour patterns in CCTV footage to identify suspicious activities or potential security threats.

  • Behaviour detection

    The process of identifying suspicious or abnormal behaviour patterns through observation, technology, or trained analysis to prevent security incidents.

  • Behaviour detection officer

    A security professional trained to recognise and interpret suspicious behaviour patterns in people, identifying potential threats before incidents occur.

  • Blockchain in security

    Distributed ledger technology used to secure data, verify identities, and create tamper-proof records in security applications.

  • Body-worn camera operator

    A security professional trained and authorised to use body-worn cameras as part of their duties, following specific protocols and legal requirements.

  • Body-worn cameras (BWC)

    Small recording devices worn by security personnel to document interactions and incidents for evidence and accountability purposes.

  • BS 7499 (static site guarding and mobile patrol services)

    British Standard providing recommendations for the management, staffing, and operation of security guarding services.

  • BS 7858 (screening of individuals working in a secure environment)

    British Standard for security screening of personnel, outlining background check requirements for security-sensitive positions.


C
  • Campus security (universities/colleges)

    Security services tailored to educational environments, covering student safety, access control, and protection of academic facilities.

  • Cash and valuables in transit (CViT) licence

    SIA licence required for security professionals who transport cash, precious metals, or other high-value items.

  • CCTV control room operator

    A security professional who monitors multiple CCTV cameras from a central location, observing for suspicious activity and coordinating responses.

  • CCTV maintenance training

    Specialised training covering the technical aspects of maintaining and troubleshooting closed-circuit television systems.

  • CCTV operator

    A security professional responsible for monitoring CCTV systems to detect and respond to security incidents or suspicious behaviour.

  • CCTV operator licence

    SIA licence required to operate CCTV surveillance systems in a professional capacity, covering both public and private monitoring.

  • Chief security officer (CSO)

    Senior executive responsible for an organisation's overall security strategy, including physical security, cybersecurity, and risk management.

  • Citizen's arrest

    Legal power allowing private individuals to detain someone they reasonably suspect of committing an indictable offence until police arrive.

  • Civilian security officer

    A private security professional, as distinct from law enforcement or military personnel, employed to protect people and property.

  • Close protection officer (CPO)

    A highly trained security professional who provides personal protection services to individuals at risk, requiring an SIA licence.

  • Closed circuit television (CCTV)

    A surveillance system using video cameras to monitor and record activities in specific areas for security purposes.

  • Cloud-based security solutions

    Security systems and services that operate through internet-connected servers rather than local hardware, offering remote access and management.

  • Code of conduct for security professionals

    Ethical guidelines and professional standards that security personnel must follow, often mandated by the SIA or employers.

  • Common law

    Legal principles developed through court decisions rather than legislation, including rights to self-defence and citizen's arrest relevant to security work.

  • Conflict management

    Skills and techniques used to prevent, de-escalate, and resolve disputes or confrontational situations peacefully and professionally.

  • Conflict resolution training

    Formal training in techniques for managing and resolving disputes, essential for security professionals dealing with confrontational situations.

  • Construction site security

    Specialised security services for building sites, focusing on preventing theft of materials and equipment and ensuring site safety.

  • Continuing professional development (CPD)

    Ongoing learning and skill development activities that security professionals undertake to maintain and improve their competence throughout their career.

  • Control room officer

    A security professional who operates from a central control room, monitoring alarms, CCTV systems, and coordinating security responses.

  • Control room operator

    An alternative term for a control room officer, responsible for monitoring security systems and managing incident responses from a central location.

  • Corporate security

    Security services designed specifically for business environments, protecting employees, assets, and confidential information.

  • Counter surveillance

    Techniques and measures used to detect and prevent surveillance activities by hostile parties or competitors.

  • Counter-terrorism awareness

    Training that helps security professionals recognise and respond to potential terrorist threats and suspicious activities.

  • Covert security operative

    A security professional who works in plain clothes to conduct surveillance or security duties without being easily identified.

  • Covert store detective

    A retail security officer who works in civilian clothing to detect shoplifting and other criminal activities without being recognised.

  • Crisis management training

    Training that prepares security professionals to respond effectively to major incidents, emergencies, or crisis situations.

  • Critical national infrastructure (CNI) security

    Protection of essential systems and assets vital to national security, including power plants, transport networks, and communication systems.

  • Crowd management

    Techniques and procedures for safely controlling and directing large groups of people at events, venues, or public spaces.

  • Cyber incident response

    Procedures and protocols for responding to cybersecurity breaches, data theft, or digital attacks affecting security systems.

  • Cyber security awareness

    Training that helps security professionals recognise and respond to digital threats, phishing attempts, and cybersecurity risks.

  • Cyber threat assessment

    Evaluation of digital security risks and vulnerabilities that could affect physical security systems or organisational operations.

  • Cybersecurity

    Protection of digital systems, networks, and data from cyber attacks, increasingly important as security systems become more connected.


D
  • Designated premises supervisor (DPS)

    The person legally responsible for the day-to-day running of licensed premises and ensuring compliance with alcohol licensing conditions.

  • Digital evidence management

    Systems and procedures for collecting, storing, and managing digital evidence from security cameras, body cams, and other electronic devices.

  • Display screen equipment (DSE)

    Computer monitors, screens, and related equipment used by security professionals, requiring proper setup and usage to prevent health issues.

  • Display screen equipment assessment

    Formal evaluation of computer workstations to ensure they meet health and safety standards and prevent repetitive strain injuries.

  • Door supervisor

    A licensed security professional who controls entry to licensed premises, manages crowds, and ensures compliance with licensing laws.

  • Door supervisor licence

    SIA licence required to work as a door supervisor at licensed premises such as pubs, clubs, and entertainment venues.

  • Drone operator licence

    CAA-issued authorisation required for commercial drone operations, including security surveillance and monitoring applications.

  • Drone security operations

    Use of unmanned aerial vehicles for security purposes including perimeter monitoring, crowd surveillance, and incident response.

  • Drones in security

    Unmanned aerial vehicles used for surveillance, perimeter monitoring, and security assessments in various environments.

  • Duty of care

    Legal and moral obligation to ensure the safety and wellbeing of others, particularly relevant for security professionals protecting people and property.

  • Duty shift manager

    A security supervisor responsible for overseeing operations during a specific shift, managing staff, and serving as the primary point of contact.

  • Dynamic risk assessment

    The ongoing process of evaluating and responding to changing risks and threats in real-time during security operations.


E
  • Electronic security systems

    Technology-based security solutions including alarms, access control, and surveillance systems that can operate without constant human supervision.

  • EFAW (emergency first aid at work)

    A basic first aid qualification covering essential life-saving skills required in many security roles.

  • Emergency evacuation procedures

    Planned procedures for safely removing people from buildings or areas during emergencies such as fires, bomb threats, or other dangers.

  • Emergency lockdown procedures

    Security protocols for securing buildings and protecting occupants during threats such as armed intruders or terrorist incidents.

  • Event response team member

    A security professional specifically trained to handle incidents and emergencies at events, working as part of a coordinated response team.

  • Event security

    Specialised security services for concerts, festivals, sports events, and other gatherings, focusing on crowd safety and access control.

  • Event security steward

    A security professional responsible for crowd management and safety at events, often requiring specific event security training.


F
  • Facial recognition technology

    Biometric technology that identifies individuals by analysing facial features, increasingly used in access control and surveillance systems.

  • FAW (first aid at work)

    A comprehensive first aid qualification that covers a wide range of medical emergencies and is often required for security roles.

  • Fire marshal/fire warden

    A person responsible for fire safety procedures, evacuation coordination, and ensuring compliance with fire safety regulations.

  • First aid at work certificate

    Official certification demonstrating competence in providing first aid treatment for various injuries and medical emergencies.

  • First aid at work level 3 course

    An advanced first aid training programme that provides comprehensive emergency medical response skills for workplace situations.

  • First person on scene (FPOS)

    A first aid qualification for individuals expected to be the first to respond to medical emergencies, common among security professionals.

  • Floorwalker

    A plain-clothed retail security officer who patrols shop floors to deter theft and observe customer behaviour.

  • Frontline licence (SIA)

    SIA licence category for customer-facing security roles including door supervisors and security guards working directly with the public.

  • Frontline operative

    A security professional who works directly with the public in customer-facing roles, requiring strong interpersonal skills.

  • Frontline security

    Security services that involve direct interaction with the public, including access control, customer service, and incident management.

  • Frontline security guard

    A security guard who works in public-facing roles, interacting directly with visitors, customers, and members of the public.

  • Front-of-house security (corporate/hotels)

    Visible security services in public areas such as reception desks, lobbies, and customer service areas.


G
  • Gatehouse officer

    A security guard stationed at entry points to control vehicle and pedestrian access, maintaining visitor logs and security protocols.

  • GDPR compliance in security

    Adherence to General Data Protection Regulation requirements when collecting, storing, and processing personal data through security systems.

  • Green room/backstage security (events/TV)

    Security services for non-public areas at entertainment venues, protecting performers, equipment, and controlling access to restricted areas.


H
  • Handcuff training

    Specialised training in the proper use of restraints, including legal considerations and safety procedures for security professionals.

  • Head doorman/door supervisor

    The senior member of a door supervision team, responsible for managing staff, liaising with management, and handling serious incidents.

  • Health and safety at work ACT 1974

    Fundamental UK legislation establishing employer and employee duties for workplace safety, with specific relevance to security operations.

  • Health and safety in security

    Application of health and safety principles to security work, including risk assessment, safe working practices, and incident prevention.

  • Hospital security

    Specialised security services for healthcare facilities, balancing patient care needs with security requirements and managing challenging situations.

  • Hostile reconnaissance

    The process by which potential attackers gather information about targets before launching an attack, which security professionals must detect and prevent.

  • Hybrid security services

    Security solutions that combine traditional physical security with modern technology such as remote monitoring and AI-powered systems.


I
  • ICO (information commissioner's office)

    UK regulatory body responsible for enforcing data protection laws, relevant to security operations involving personal data collection.

  • In-house security

    Security personnel directly employed by the organisation they protect, as opposed to contracted third-party security services.

  • Incident prevention strategies

    Proactive measures and techniques designed to prevent security incidents from occurring rather than simply responding to them.

  • Incident response plan

    A documented procedure outlining how to respond to various types of security incidents, emergencies, or breaches.

  • Integrated security systems

    Comprehensive security solutions that combine multiple technologies such as CCTV, access control, and alarms into a unified unmanned system.

  • Intruder alarms

    Electronic security systems designed to detect unauthorised entry into buildings or areas and alert security personnel or monitoring centres.

  • Investigatory powers ACT 2016

    UK legislation governing surveillance powers of law enforcement and intelligence agencies, with implications for private security surveillance activities.

  • IoT security devices

    Internet-connected security devices such as smart cameras, sensors, and access control systems that can be monitored and controlled remotely.


K
  • Key-holder

    A person authorised to hold keys for a premises and respond to alarm activations, often a security company employee or site manager.


L
  • Lead security officer

    A senior security officer responsible for supervising other officers, coordinating activities, and serving as the primary contact for management.

  • Level 2 CCTV training

    Intermediate training in CCTV operations covering advanced monitoring techniques, system management, and incident response procedures.

  • Licensing authority

    Local government body responsible for issuing and regulating licences for premises selling alcohol or providing entertainment.

  • Loss prevention officer

    A security professional specialising in preventing theft and reducing losses in retail environments through surveillance and investigation.


M
  • Manned guarding

    Traditional security services involving physical presence of security personnel at a location, as opposed to remote or electronic monitoring.

  • Maritime security

    Security measures for ports, ships, and coastal facilities, including compliance with international maritime security codes and regulations.

  • Metal detectors

    Security screening devices that detect metallic objects, commonly used at airports, events, and high-security facilities.

  • Mobile CCTV operator

    A security professional who operates portable or vehicle-mounted CCTV systems for temporary surveillance needs.

  • Mobile patrol officer

    A security guard who conducts regular patrols of multiple sites using a vehicle, checking for security breaches and responding to incidents.

  • Mobile response officer

    A security professional who responds to alarm activations and incidents across multiple locations from a patrol vehicle.


N
  • NCPLH (national certificate for personal licence holders)

    A qualification that allows individuals to sell alcohol in licensed premises, required under UK licensing laws (replaced by the Level 2 Award for Personal Licence Holders - APLH since 2011).

  • Nightclub security

    Specialised security services for nighttime entertainment venues, focusing on crowd control, preventing violence, and managing intoxicated customers.


O
  • Off licences security

    Security measures for shops licensed to sell alcohol for consumption off the premises, including theft prevention and age verification.

  • Operational security (OPSEC)

    Practices and procedures designed to protect sensitive information and operations from being compromised by hostile parties.


P

R
  • Radio communication

    Two-way radio systems used by security teams to maintain contact, coordinate responses, and report incidents in real-time.

  • Reasonable force

    The minimum level of physical force necessary to resolve a situation, as defined by law and essential for security professionals to understand.

  • Regulatory reform (fire safety) order 2005

    UK legislation placing fire safety responsibilities on building owners and managers, relevant to security personnel in emergency situations.

  • Remote monitoring

    Security surveillance conducted from a distant location using internet-connected cameras and sensors, a key component of unmanned guarding.

  • Remote monitoring systems

    Security systems that allow surveillance and control of sites from distant locations using internet-connected cameras and sensors.

  • Remote response protocol

    Procedures for responding to security incidents detected through unmanned systems, including when to dispatch personnel or contact authorities.

  • Remote workforce security

    Security measures designed to protect employees and assets when working from home or other locations outside traditional office environments.

  • Residential security team (RST)

    Security professionals specialising in protecting residential properties, gated communities, and housing developments.

  • Retail security

    Security services specifically designed for shops and retail environments, focusing on theft prevention and customer safety.

  • Retail security officer

    A security professional specialising in protecting retail premises from theft, managing customer incidents, and ensuring store safety.

  • Risk assessment

    The systematic process of identifying, analysing, and evaluating potential security threats and vulnerabilities to determine appropriate protective measures.


S
  • Safety awareness course

    Training programme designed to increase understanding of workplace hazards and safe working practices relevant to security operations.

  • Screening and vetting

    The process of conducting background checks and security clearance procedures before employing individuals in security-sensitive positions.

  • Screening officer

    A security professional responsible for checking people, baggage, or vehicles for prohibited items, typically at airports or high-security facilities.

  • Security auditing

    Systematic evaluation of an organisation's security policies, procedures, and controls to identify vulnerabilities and recommend improvements.

  • Security concierge

    A security professional who combines traditional security duties with customer service functions, often in corporate or residential settings.

  • Security consultant

    An expert who provides advice on security matters, conducts risk assessments, and recommends security solutions for organisations.

  • Security guard

    A licensed security professional responsible for protecting people, property, and assets through observation, patrol, and access control.

  • Security guard licence

    SIA licence required to work as a security guard, covering roles involving protection of property and people.

  • Security industry accreditation

    Official recognition and certification of security companies, training providers, or professionals meeting industry standards.

  • Security management systems (SMS)

    Comprehensive frameworks for managing all aspects of an organisation's security operations, policies, and procedures.

  • Security officer

    A professional term for a security guard, emphasising the responsible and skilled nature of modern security work.

  • Security refresher training

    Periodic training updates required to maintain security qualifications and stay current with industry best practices and legal requirements.

  • Security risk assessment

    Detailed analysis of potential threats and vulnerabilities specific to security operations, used to develop appropriate protective measures.

  • Security screener

    A security professional who operates screening equipment and procedures to detect prohibited items and potential threats.

  • Security team leader

    A supervisory role responsible for managing a team of security officers and ensuring effective coordination of security operations.

  • Security threat assessment

    Evaluation of specific threats facing an organisation or location, used to develop targeted security measures and response plans.

  • Security top-up refresher training

    Additional training modules required to maintain or upgrade certain SIA security qualifications and licences.

  • Self-defence training

    Training in personal protection techniques that security professionals may use to protect themselves and others when facing physical threats.

  • SIA (security industry authority)

    The UK government body responsible for regulating the private security industry and issuing licences to security professionals.

  • SIA criminal record checker

    The process by which the SIA reviews an applicant's criminal history as part of the licence application procedure.

  • SIA licence

    Official authorisation required to work in most areas of the private security industry in the UK, issued by the Security Industry Authority.

  • SIA licence renewal

    The process of extending an existing SIA licence before it expires, typically required every three years.

  • SIA licence-linked qualifications

    Specific training courses and qualifications required to apply for different types of SIA licences.

  • SIA-approved training provider

    An organisation officially recognised by the SIA to deliver training courses that lead to SIA licence-linked qualifications.

  • Site security guard

    A security professional assigned to protect a specific location, building, or facility on a permanent or long-term basis.

  • Situational awareness

    The ability to perceive and understand what is happening in the surrounding environment, crucial for effective security work.

  • Smart security systems

    Advanced security technology that uses artificial intelligence, machine learning, and automation to enhance traditional security measures.

  • Static officer

    A security guard assigned to remain at a fixed position or limited area, as opposed to mobile patrol duties.

  • Static security guard

    A security professional who maintains a permanent post at a specific location rather than conducting mobile patrols.

  • Sterile area (events/airports)

    A secured zone that has been searched and cleared of prohibited items, with controlled access to maintain security integrity.

  • Store detective

    A security professional who works in retail environments to detect and prevent shoplifting, often working in plain clothes.

  • Surveillance detection officer

    A security professional trained to identify when they or their principal are under surveillance by hostile parties.

  • Surveillance equipment

    Technology used for monitoring and recording activities, including cameras, recording devices, and tracking systems.

  • Surveillance officer

    A security professional specialising in covert observation and monitoring of people, places, or activities for security purposes.

  • Sustainable security solutions

    Security measures designed to be environmentally responsible and economically viable over the long term.


T
  • Tactical risk management

    Advanced risk assessment and mitigation strategies used in high-threat environments or complex security operations.

  • Tagging officer

    A retail security role focused on applying and managing electronic article surveillance (EAS) tags to prevent theft.

  • Terror threat awareness

    Training that helps security professionals recognise signs of terrorist activity and respond appropriately to potential threats.

  • Thermal imaging cameras

    Surveillance technology that detects heat signatures, useful for perimeter security and detecting intruders in low-light conditions.

  • Threat mitigation

    Strategies and actions taken to reduce the likelihood or impact of identified security threats.

  • Trackside security (railways/motorsport)

    Specialised security for railway lines or motorsport circuits, ensuring public safety and preventing unauthorised access to dangerous areas.

  • Transport security officer (TSO)

    A security professional specialising in protecting transportation systems, including airports, railways, and public transport networks.


U
  • Unarmed security guard

    A security professional who does not carry weapons, relying on observation, communication, and de-escalation techniques.

  • Unmanned guarding

    Security services that rely on technology, remote monitoring, and automated systems rather than physical presence of security personnel on-site.

  • Unmanned security systems

    Integrated technology solutions including CCTV, alarms, and sensors that provide security coverage without requiring on-site personnel.


V
  • Vigilance and observation

    Core security skills involving maintaining alertness and carefully monitoring surroundings to detect potential threats or incidents.

  • VIP protection specialist

    A highly trained close protection officer who provides security services to high-profile individuals, celebrities, or executives.

  • Virtual course

    Online training programmes that allow security professionals to complete required qualifications remotely via internet-based learning platforms.

  • Virtual guard

    A remote security operator who monitors multiple sites through CCTV and electronic systems, providing security oversight without physical presence.

  • Virtual reality training for security professionals

    Advanced training methods using VR technology to simulate realistic security scenarios for practice and skill development.

  • Virtual security patrol

    Remote monitoring service that simulates physical patrols through systematic checking of CCTV cameras and electronic systems.


W

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