What is a Citizen’s Arrest?

Administrative Law, Articles, Constitutional Law, Criminal Law

11 November 2025

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2–4 minutes

When and how is a citizen’s arrest legal in South Africa?

We’ve all heard the term “citizen’s arrest” at some point in our lives, whether in real life or in movies. But what exactly is a citizen’s arrest, when can you do it, and under what circumstances is it lawful?

A citizen’s arrest refers to the act of a private individual detaining another without a warrant. This is typically on the basis of having witnessed the commission of a crime or having reasonable suspicion that one has been committed. The term “citizen” in this context is not used in its narrow legal sense. A person need not be a South African citizen to effect such an arrest. Foreign residents and tourists may also lawfully do so. For this reason, the more accurate terminology is “arrest by a private person.”

The legal authority for a private person to arrest another without a warrant is primarily found in sections 42 and 43 of the Criminal Procedure Act.¹ These provisions permit such arrests by private persons in the following circumstances:

Where a person commits or attempts to commit a Schedule 1 offence in the presence of the private person, or where the private person reasonably suspects that such an offence has been committed. In such instances, the private person may pursue the suspect, and others who are aware of the pursuit’s purpose may lawfully assist. This should not be conflated with acts of mob justice.
Where the private person reasonably believes that someone who has committed any offence is escaping from, and is freshly pursued by, an individual whom the private person reasonably believes to have authority to arrest that person. The phrase “freshly pursued” implies a continuous or immediate chase, not one that resumed after a delay, such as a pursuit that began a week earlier.
Where the private person is authorised by any other law to arrest without a warrant in relation to a specific offence. For instance, section 4(1) of the Stock Theft Act² empowers private individuals to arrest, without a warrant, persons suspected on reasonable grounds of having committed offences under that Act.
Where the private person witnesses an affray, i.e., a public fight that disturbs the peace.
Where the person effecting the arrest is the owner, lawful occupier, or person in charge of the property on or in which a person is found committing any offence, or is someone authorised by such a person.

The powers of private persons to arrest without a warrant must be exercised with caution. Courts are generally protective of individual liberty and expect private persons to act within the confines of the law. In Morapedi v Springs Municipality,³ a municipal constable arrested individuals found in unlawful possession of liquor. The court held that he lacked the power to arrest without a warrant as a private person, since the relevant statutory provision permitted warrantless arrests only in cases involving the supply of liquor, not mere possession.

In summary, the power of arrest by private persons exists in South African law but is strictly limited. Any such arrest must meet the statutory requirements. Crucially, once a private person has effected an arrest, the detained individual must be handed over to the police as soon as possible. A private person may not detain someone indefinitely, even if they have reasonable grounds to believe that a crime has been committed.