2.2 Offences Against Property — Theft


2026 Syllabus Objectives

By the end of these notes, you should be able to:

  • State the legal definition of theft under the Theft Act 1968
  • Identify and explain the three elements of the actus reus (the guilty act) of theft: appropriation, property, and belonging to another
  • Identify and explain the two elements of the mens rea (the guilty mind) of theft: dishonesty and intention to permanently deprive
  • Apply key case law to each element
  • Understand how theft is sentenced

1. What is Theft?

Theft is defined in Section 1 of the Theft Act 1968. The definition states:

A person is guilty of theft if they dishonestly appropriates property belonging to another with the intention of permanently depriving the other of it.

Every single word in this definition matters. Sections 2–6 of the Act explain each word or phrase in detail. Here is how they map out:

SectionWord/Phrase ExplainedPart of the Offence
s 3AppropriatesActus reus
s 4PropertyActus reus
s 5Belonging to anotherActus reus
s 2DishonestlyMens rea
s 6Intention of permanently deprivingMens rea

Important: Sections 2–6 are just definition sections — they explain the words in Section 1. The actual crime is always charged under Section 1.


2. The Actus Reus of Theft

The actus reus (Latin for "guilty act") is the physical part of the crime — what the defendant actually did. For theft, there are three elements that must all be proved:

  1. Appropriation (s 3)
  2. Property (s 4)
  3. Belonging to another (s 5)

2.1 Appropriation (Section 3)

Appropriation means any assumption by a person of the rights of an owner. In plain English, this means acting as if you are the owner of something that does not belong to you.

The most obvious example is physically picking something up and taking it. But appropriation is much wider than just "taking." It includes:

  • Physically picking up an item
  • Destroying someone else's property
  • Throwing someone's property away
  • Selling something that belongs to someone else
  • Switching price labels on items in a shop
  • Paying with a worthless cheque
  • Receiving something as a gift and deciding to keep it

Key point: You only need to assume one of the owner's rights — not all of them — for it to count as appropriation.

Can appropriation happen even with the owner's consent?

Yes. The courts have decided that appropriation can still occur even if the owner agreed to give the property to the defendant. This seems surprising, but it means the focus shifts to whether the defendant was dishonest, not whether the owner agreed.

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