Relevant UK laws (Theft Act, Criminal Law Act, Human Rights Act)

Introduction

As a licenced security officer, understanding the laws that govern your actions is not just useful—it’s essential. Every decision you make, whether stopping a suspect or detaining someone, must align with UK legislation. This lesson focuses on three key laws that every officer must know inside out:

  • Theft Act 1968

  • Criminal Law Act 1967

  • Human Rights Act 1998

We’ll break these down simply, give you real-world examples, and explain how to stay on the right side of the law—protecting both the public and yourself.

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.

The Theft Act 1968

What is it?

The Theft Act 1968 defines what theft is and sets out other related offences such as robbery, burglary, and handling stolen goods.

Key Definition (Section 1):

“A person is guilty of theft if they dishonestly appropriate property belonging to another with the intention of permanently depriving them of it.”

In Retail Security, This Means:

You may encounter:

  • Shoplifting (most common offence)

  • Price label switching

  • Concealing items

  • Refund fraud

Legal Elements to Prove Theft:

ElementMeaning
DishonestyNo intention to pay or rightful claim
AppropriationTaking possession of goods
PropertyIncludes goods, money, vouchers, etc.
Belonging to anotherNot owned by the suspect
Intention to depriveNo plan to return or pay later

Consequences of Misunderstanding:

  • False accusations may lead to legal action against the officer and employer

  • Poor incident documentation weakens police cases

Criminal Law Act 1967 – Reasonable Force & Citizens' Arrest

What is it?

This law outlines when and how you can use force or make an arrest without being a police officer.

Section 3 – Use of Reasonable Force

“A person may use such force as is reasonable in the circumstances in the prevention of crime.”

Section 24A – Citizens’ Arrest

Allows any person to arrest without a warrant:

  • If an indictable offence (e.g. theft) is being committed

  • If it is not reasonably practical for a police officer to do so

Realistic Limits:

DODO NOT
Use only minimum force necessaryUse excessive force (e.g. punches, headlocks)
Arrest after offence committed and you’ve observed itArrest based on suspicion alone
Immediately call police and hand overHold the person longer than needed

You Must:

  • Be 100% certain a crime occurred

  • Never act on bias or emotion

  • Act proportionately and record every step

Human Rights Act 1998

What is it?

The Human Rights Act protects the basic rights and freedoms of every person in the UK—including shoplifters.

Key Rights Relevant to Security Officers:

RightWhat It Means in Practice
Article 3 – No inhuman treatmentYou must not use force or language that causes fear or humiliation.
Article 5 – Right to libertyYou can detain someone lawfully only within your legal limits.
Article 6 – Right to a fair trialEvidence (e.g. CCTV, reports) must be accurate and not misleading.
Article 8 – Right to privacyCCTV use, bag searches, and personal data collection must be justified.

 

As a security officer, this means:

  • Be respectful, non-judgmental, and avoid confrontational language

  • Don’t search someone unless it’s a policy and done with consent

  • Avoid unnecessary touching or blocking exits unless required

Real-World Example

Scenario:
You observe a customer in a supermarket concealing two high-value items in a backpack. You monitor discreetly and witness the person pass all tills without making payment.

You detain the individual outside the payment area using reasonable force. You immediately:

  • Inform the person of the reason for the detention

  • Call for a supervisor and notify police

  • Record all details, including use of CCTV and ASCONE elements

  • Complete a professional, unbiased incident report

You’ve now acted lawfully under all three acts.

Statistics That Matter

  • Over 8 million shoplifting incidents occurred in UK retail settings last year

  • Less than 12% of shoplifters are apprehended—mainly due to weak evidence

  • Over 40% of false arrest claims are due to officers misunderstanding the law

Consequences of Non-Compliance

If You Break the LawPossible Consequences
Use unlawful forceLoss of SIA licence, criminal charge, employer liability
Detain someone without lawful reasonCivil lawsuits, store termination, reputational damage
Breach privacy rights (e.g. GDPR)Data protection fines, dismissal, customer complaints