Citizen’s Arrests (NSW)

While arrests are usually carried out by police, New South Wales legislation empowers any member of the public to carry out an arrest in certain circumstances. An arrest that is carried out by someone who is not a police officer is known as a citizen's arrest. This page deals with citizen's arrests in New South Wales.

Understanding the legal framework surrounding citizen's arrests is crucial for both the general public and those working in security roles. The power to detain another person is significant and comes with substantial legal responsibilities. Misunderstanding these laws can result in serious criminal charges, civil liability, and potential harm to all parties involved.

Who can carry out a citizen's arrest?

Citizen's arrests are most often carried out by security guards and shopkeepers. However, any member of the public can carry out an arrest if there are grounds to do so. The arrestor must then take the person arrested before an authorized officer to be dealt with.

Common scenarios for citizen's arrests

In practice, citizen's arrests occur most frequently in retail environments where shoplifting is suspected, or by security personnel witnessing criminal activity. Private investigators, loss prevention officers, and bounders at licensed premises may also find themselves in situations where a citizen's arrest becomes necessary. Even ordinary citizens who witness serious crimes in progress may have legal grounds to detain an offender until police arrive.

Authority and limitations

It's important to understand that citizen's arrest powers are more limited than those of police officers. Members of the public do not have the same broad discretionary powers as law enforcement and must strictly adhere to the conditions set out in NSW legislation to avoid legal consequences.

When can a citizen's arrest occur?

Under section 100 of the Law Enforcement (Powers and Responsibilities) Act 2002, a person may arrest a person without a warrant if:

• The person is in the act of committing an offence;
• The person has just committed an offence;
• The person has committed a serious indictable offence for which they have not been tried.

A serious indictable offence means an offence punishable by five years' imprisonment or more.

Understanding "in the act" and "just committed"

The timing of a citizen's arrest is critical. "In the act of committing an offence" refers to catching someone red-handed while they are actively engaged in criminal behavior. "Just committed an offence" typically means immediately after the crime has occurred, such as pursuing a shoplifter who has left the store with stolen goods. The window for what constitutes "just committed" is narrow and generally requires continuous observation from the time of the offence.

Serious indictable offences

For historical serious indictable offences, the person making the arrest must have actual knowledge that the individual committed the crime and has not been tried for it. This provision allows for arrests of individuals wanted for serious crimes like armed robbery, sexual assault, or drug trafficking, but requires certainty rather than mere suspicion.

Legal procedures following a citizen's arrest

Once a citizen's arrest has been made, specific legal obligations must be fulfilled to ensure the detention remains lawful.

Immediate responsibilities

The person making the arrest must deliver the detained individual to an authorized officer as soon as reasonably practicable. This typically means contacting police immediately and remaining with the arrested person until officers arrive. The arrestor should clearly identify themselves, explain the reason for the arrest, and avoid unnecessary force or restraint.

Documentation and evidence

It's advisable to document the circumstances of the arrest, including the time, location, witnesses present, and specific actions observed. This information will be crucial if the matter proceeds to court or if the legality of the arrest is later questioned. Security camera footage, if available, should be preserved as evidence.

Unlawful arrests

If a citizen's arrest is carried out, it must be done within the limits prescribed by law.

A person is permitted to use reasonable force when carrying out a citizen's arrest. If more than reasonable force is used, the person being arrested may take legal action against the arrestor.

A person who carries out a citizen's arrest must do so on the basis of actual knowledge that the person has committed an offence. While the police may carry out an arrest based on a reasonable suspicion, a member of the public may not do so.

If the person arrested is injured, subjected to unnecessary humiliation or degradation, or if they are not delivered promptly into police custody, this may also render the arrest unlawful.

Consequences of unlawful detention

An unlawful arrest may lead to civil consequences such as an action in tort law. It could also lead to criminal consequences such as the arrestor being charged with an offence like assault or deprivation of liberty.

Under the Crimes Act 1900 (NSW), unlawful detention can constitute false imprisonment, which carries serious penalties. Additionally, if excessive force is used, charges of assault or assault occasioning actual bodily harm may be laid against the person who made the arrest.

Reasonable force guidelines

What constitutes "reasonable force" depends on the circumstances, including the seriousness of the offence, the behavior of the person being arrested, and the risk of escape or harm to others. Generally, the minimum force necessary to effect the arrest and prevent escape should be used. Weapons should not be used unless there is an immediate threat to safety.

Risks and considerations

A citizen's arrest should only be carried out where it is a necessity as doing so comes with significant risks such as the possibility of getting injured, injuring the person being arrested, or exposing oneself to legal consequences because the arrest was carried out wrongly or without sufficient cause.

Personal safety risks

Attempting to detain another person can escalate a situation and lead to violence. The person being arrested may resist, potentially causing injury to themselves or the arrestor. There's also the risk of mistaken identity or misunderstanding the situation, which could result in detaining an innocent person.

Legal and financial risks

Beyond potential criminal charges, those who make unlawful arrests may face civil lawsuits seeking compensation for wrongful detention, assault, or damage to reputation. Legal costs alone can be substantial, even if ultimately successful in defending such claims.

Alternative approaches

In many situations, it may be more appropriate to act as a witness rather than attempting an arrest. Calling police immediately, taking photos or video evidence (where legally permitted), and providing detailed witness statements can often be more effective and safer than attempting physical detention.

Other jurisdictions

Each state and territory has its own laws about the circumstances where a person may carry out a citizen's arrest. There are significant differences in where this may occur from one jurisdiction to another.

For instance, some jurisdictions have different thresholds for serious offences or varying requirements for reasonable suspicion versus actual knowledge. If you're traveling between states or operating a business across state borders, it's essential to understand the specific laws that apply in