Role of Security Officers and Store Detectives

Introduction

As a frontline retail security officer or store detective, you are not just a deterrent to theft—you’re an essential part of a store’s loss prevention, safety, and customer experience strategy.

This lesson explores your responsibilities, expected conduct, and the legal standards you must follow. It also highlights how you add value to the wider business and public trust.

What’s the Difference Between a Security Officer and a Store Detective?

RoleDescription
Security OfficerHigh-visibility presence to deter theft, monitor access points, and assist customers.
Store DetectiveWorks in plain clothes to detect and apprehend shoplifters discreetly.

Your Core Responsibilities

Crime Prevention

  • Maintain a visible presence (if in uniform)

  • Patrol high-risk areas

  • Deter theft through observation, interaction, and presence

Observation & Surveillance

  • Use CCTV and floor patrols to monitor activity

  • Identify suspicious behaviour using ASCONE and SAFER models

Incident Response

  • Intervene lawfully during thefts

  • Conduct citizens’ arrests if necessary and legal

  • Use reasonable force only when permitted under the Criminal Law Act 1967

Reporting

  • Write detailed, factual incident reports

  • Secure evidence (e.g., CCTV footage, witness statements)

  • Work with police and store management when needed

Customer Engagement

  • Welcome customers (if in uniform) to improve perception and deter theft

  • Respond to customer queries professionally

Standards You Must Follow

Standard / LawWhat It Means for You
SIA Licence – PSIA 2001You must hold a valid SIA licence to work legally and lawfully in these roles.
BS 7499Outlines how you must carry out guarding duties, including patrols, conflict handling.
BS 7858Ensures you’ve been screened properly for trust and reliability.
NSI Codes of PracticeSets expectations for quality, honesty, and professionalism in your conduct.
GDPR (UK)You must handle all personal data (e.g. CCTV footage, reports) lawfully and securely.
HSE GuidanceRequires you to act safely and report health/safety concerns (manual handling, slips).

Legal Authority and Limits

  • You are not a police officer.
    Your powers are limited to what any member of the public can do unless you are also accredited under CSAS (Community Safety Accreditation Scheme).

  • You can detain a suspect using reasonable force under Section 24A of the Police and Criminal Evidence Act (PACE) but only when:

    • A crime has been committed

    • You have witnessed it or have clear evidence

    • You immediately call the police

Never:

  • Use excessive force

  • Detain someone without cause

  • Continue detention after police arrive

Real-World Example

Scenario:
You are working in a plain-clothes role as a store detective in a high street fashion retailer. You observe a female customer selecting multiple items and heading to the fitting room. After exiting, you notice some tags left behind inside the cubicle.

Using the ASCONE model, you confirm:

  • Approach

  • Select

  • Conceal

  • Observe

  • No payment

  • Exit

After exit, you safely detain the suspect outside the till area, radio for support, and begin an incident report. You remain calm, follow procedure, and assist police once they arrive.

How You Add Value to the Business

According to the British Retail Consortium, UK retailers lose over £5 billion per year to shrinkage. Trained security officers significantly reduce losses through early detection and deterrence.

You:

  • Help reduce crime and improve safety

  • Protect stock and assets

  • Improve the customer shopping experience

  • Help retailers stay compliant with laws and standards

Tips for Success

Know your legal limits – act only when you’re confident and trained
Stay professional and polite – even with offenders
Always document incidents in detail – they can be used in court
Never work outside your assignment instructions
Report health and safety hazards – this is part of your role under HSE rules

Consequences of Poor Conduct or Inaction

Failing to act during a confirmed theft may lead to disciplinary action
Misuse of force or unlawful detention may result in SIA licence suspension or legal action
Inaccurate reports may weaken the case for prosecution
Poor customer conduct can damage the store’s reputation