What Are Reasonable Grounds for Stop and Search?

Police stop and search powers are designed to prevent crime and protect the public. However, these powers are not unlimited. Officers must follow strict legal rules before stopping and searching someone, and one of the most important requirements is that they must have reasonable grounds for stop and search.

If you have been stopped and searched and felt it was unjustified, you may be wondering whether the officer acted lawfully. Understanding what counts as reasonable grounds, and what does not, is essential in determining whether your rights were breached.

This guide explains how stop and search powers work, what the law requires, and what to do if you believe a search was unlawful.

What is a police stop and search?

A stop and search is a power that allows police officers to detain a person briefly and search them or their belongings for prohibited items.

These items may include:

• Illegal drugs
• Weapons
• Stolen property
• Fireworks
• Items intended to be used in criminal activity

Most stop and searches are carried out under Section 1 of the Police and Criminal Evidence Act 1984 (PACE) or under the Misuse of Drugs Act 1971.

Importantly, a stop and search is not an arrest. You are being detained temporarily for the purpose of the search only. However, it is still a restriction on your liberty, and the law requires officers to justify it properly.

When do police stop and search people?

Police may carry out a stop and search when they suspect a person is carrying prohibited items. In most cases, they must have reasonable grounds before doing so.

There are also limited situations where police can conduct searches without suspicion for example, under Section 60 of the Criminal Justice and Public Order Act 1994, where a senior officer authorises suspicionless searches in a specific area for a limited time due to anticipated serious violence.

Outside of these specific authorisations, officers must be able to explain clearly what gave rise to their suspicion.

What are reasonable grounds for stop and search?

The phrase reasonable grounds for stop and search is central to determining whether police acted lawfully.

Reasonable grounds means:

• The officer must have a genuine suspicion that you are carrying a prohibited item; and
  
  
• That suspicion must be objectively reasonable, based on specific facts or information.
  
  

It is not enough for an officer to rely on a vague feeling or general assumption. There must be a clear basis for the suspicion at the time of the search.

Examples of factors that may amount to reasonable grounds include:

• Witness reports describing a suspect matching your appearance
• CCTV footage linking you to suspicious activity
• Intelligence suggesting you are involved in drug dealing
• Behaviour that appears consistent with concealing an item
  
  

However, the law is clear that reasonable grounds cannot be based solely on:

• Your race, ethnicity, or age
• The way you are dressed
• The area you are in
• Previous convictions alone
• Stereotypes or generalisations

For example, being in a “high crime area” does not automatically give police reasonable grounds to search you. The suspicion must relate specifically to you and your conduct.

If an officer cannot properly explain their grounds, the search may be unlawful.

What should happen during a stop and search?

There are strict procedural safeguards that officers must follow.

Before conducting a search, the officer should:

• Identify themselves (name and police station)
• Inform you that you are being detained for a search
• Explain the legal power being used
• Clearly state the reasonable grounds for stop and search
• Tell you that you are entitled to a written record of the search

This is often remembered using the acronym “GOWISELY” (Grounds, Object, Warrant card, Identity, Station, Entitlement to a record, Legal power, You are detained).

The search itself must be carried out respectfully and proportionately. Officers must not use excessive force and must not conduct a strip search in public.

After the search, you should receive a record or information explaining how to obtain one.

Failure to follow these steps can make an otherwise lawful search unlawful.

What makes a stop and search unlawful?

A stop and search may be unlawful if:

• There were no reasonable grounds for stop and search
• The officer failed to explain the grounds properly
• The search was carried out under the wrong legal power
• The officer used unnecessary or excessive force
• The search was conducted in a discriminatory manner
• You were detained longer than necessary

Even if nothing was found during the search, that does not automatically mean it was unlawful. The key issue is whether reasonable grounds existed at the time.

Unlawful stop and searches can be humiliating and distressing. In some cases, they may also amount to discrimination or a breach of human rights.

What to do after an unlawful stop and search

If you believe you were subjected to an unlawful stop and search, it is important to act promptly.

You should:

1. Keep the stop and search record provided by the officer.
2. Write down what happened, including what was said and done.
3. Note the officers’ names or badge numbers if possible.
4. Identify witnesses who may support your account.
5. Seek legal advice from a solicitor experienced in actions against the police.

You may also consider making a formal complaint, but a complaint alone will not result in compensation.

How to claim unlawful stop and search compensation

If the police did not have reasonable grounds for stop and search, you may be entitled to bring a civil claim against the relevant police force.

Compensation may cover:

• Distress and humiliation
• Injury caused during the search
• Financial loss
• Aggravated damages where conduct was oppressive or discriminatory

Strict time limits apply. In most cases, you have six years to bring a claim. Personal injury (PI) claims typically have a shorter limitation period of three years. Human rights claims may have a limitation period of just one year

Because police forces often defend these claims robustly, specialist legal advice is essential to maximise your chances of success.

Understanding reasonable grounds for stop and search is key to knowing whether your rights have been respected. Police officers must justify their actions based on specific, objective facts, not assumptions or stereotypes.

If you believe you were unlawfully stopped and searched, you may have the right to claim compensation and hold the police accountable.