When it comes to harassment and stalking offences, the law is deliberately broad, which means even limited contact can be scrutinised once it is reported to the police. Allegations are assessed through a legal lens that focuses on patterns of behaviour, the effect on the other person and any indication of risk. As a result, conduct that may seem minor at face value can still fall within the scope of a criminal offence and, in some cases, lead to proceedings where a custodial sentence is a possibility.

This guide explains how the law works, when harassment can lead to custody, how police and the Crown Prosecution Service assess such cases and how expert legal advice can influence the outcome.

What the Law Considers Harassment

Under the Protection from Harassment Act, harassment means unwanted behaviour carried out on two or more occasions that causes another person alarm or distress. It applies to both direct and indirect contact. Many harassment cases arise from:

• Repeated calls or social media messages.
• Turning up to someone’s house or place of work uninvited.
• Attempts to gather information about someone.
• Unwanted persistent sexual comments.

The law considers whether your behaviour ought to have been recognised as harassment, based on how a reasonable person would interpret the same conduct.

Harassment can also relate to conduct linked to protected characteristics under the Equality Act, including race, religion, disability, gender reassignment and sexual orientation. If the case is said to be religiously aggravated or motivated by hostility to a protected characteristic, the allegations may be treated as more serious, and the behaviour does not need to have happened on multiple occasions to represent an offence.

Where there is a pattern of unwanted behaviour or suggestions of intimidation, the police may consider that the behaviour meets the criminal threshold. This is true even of actions that would normally be dealt with under civil law, such as sexual harassment in the workplace or an education setting. If physical contact is alleged, the police may also explore charges of sexual assault.

When Harassment Becomes a Criminal Offence

Behaviour becomes a criminal matter when it moves past a single incident and develops into a pattern that causes distress, fear or a substantial adverse effect on the other person’s daily life. Police forces look at:

• The frequency of contact.
• Attempts to continue contact after being asked to stop.
• The effect on the other person’s work, home life or mental wellbeing.
• Any suggestion of fear, intimidation or coercion.
• Whether the behaviour forms part of a wider issue such as domestic abuse or breakdown in family relationships.
• Situations involving a person who is viewed as vulnerable because of a mental disorder, a learning disability or other circumstances.

If the police conclude that there is no reasonable excuse for the behaviour, they will treat it as a criminal offence and progress the investigation accordingly.

In harassment and stalking cases, police forces also carry out a risk assessment. They examine whether the behaviour indicates monitoring, tracking or persistent attempts to locate or observe the other person, and whether it is said to have caused serious alarm or disruption to their daily life.

What Happens When the Police Become Involved

Police involvement begins when a report is made that behaviour may amount to harassment or stalking under the Protection from Harassment Act or related legislation. Once a report is logged, officers must decide whether the behaviour described meets the threshold for a criminal offence, whether there is an immediate risk and if a formal investigation is required. If those thresholds are met, an investigation is opened.

At this stage, officers examine the available material. They review messages, call records, online activity, CCTV, emails and any witness accounts, and they will speak to you directly to record your account. Having a solicitor present, such as the criminal defence team at JMW, will make sure your rights are respected, and make sure your account is presented clearly and fairly. Your solicitor will also help to identify the mitigating factors that can be presented to the court to consider.

The police will also look at previous contact or disputes to understand any pattern of behaviour. Alongside this, they will complete a structured risk assessment using their internal statutory guidance. If the report raises concerns linked to domestic abuse, mental ill health or safeguarding issues, they may involve other agencies, such as health services, a local council or specialist teams.

Police forces can share information through a multi-agency response and may signpost the complainant to support services, including the National Stalking Helpline, although this does not influence your legal position. The central question for officers is whether the evidence suggests a criminal offence has been committed and whether further action is required.

If the police decide that the legal threshold may be met, the case is passed to the Crown Prosecution Service, which reviews the evidence and decides whether to charge you.

If a charge is authorised, you will be required to attend court. At every step of this process, it is important to have a solicitor involved. The criminal defence team at JMW can engage with officers during the investigation, clarify inaccuracies, challenge assumptions, identify weaknesses in the prosecution’s case, and protect your position from the outset, long before the case reaches court.

Can You Go to Prison for Harassment?

Harassment and stalking offences can carry prison sentences in England and Wales. Your risk depends on the specific offence, the seriousness of the behaviour and any aggravating features. Below are the main offences and their maximum sentences:

Harassment - section 2 of the Protection from Harassment Act

This covers patterns of unwanted behaviour causing alarm or distress.

• Maximum sentence: up to six months’ imprisonment in the Magistrates’ Court.
• If racially or religiously aggravated, the case can go to the Crown Court with a maximum of two years’ imprisonment.

Harassment involving fear of violence

This is considered a more serious offence. It applies when the behaviour causes the other person to fear that violence will be used against them on at least two occasions.

• Maximum sentence: up to ten years' imprisonment in the Crown Court.

Courts look carefully at the risk assessment, including any threats, aggressive messages or conduct suggesting escalating behaviour, when determining a sentence.

Stalking

Stalking involves repeated unwanted contact or behaviour such as following, monitoring, turning up at places without invitation, or digital observation.

• Maximum sentence: up to six months (Magistrates’ Court) or two years (Crown Court) in prison.

Stalking involving fear of violence or serious alarm or distress

This applies where the conduct has a substantial adverse effect on day-to-day life, or involves fear that violence may be used.

• Maximum sentence: up to ten years' imprisonment.

Courts look at how the behaviour changed the other person’s life. For example, if it caused them to alter routines or avoid locations, this can lead to a stronger sentence.

Controlling or coercive behaviour

Where behaviour forms part of a pattern within family relationships or intimate relationships, the case may fall under coercive control laws.

• Maximum sentence: up to five years’ custodial sentence.

How Sentencing Guidelines Work

Courts follow Sentencing Council guidelines, which assess:

Culpability: the court considers how deliberate, planned or persistent the behaviour was. This is treated as higher where there is:

• A pattern of escalating behaviour.
• Use of technology to contact, track or monitor the victim.
• Targeting or approaching the victim’s children or family members.
• Behaviour motivated by hostility towards protected characteristics.
• A breach of previous protection orders, bail or any civil order.

Harm: this is assessed by looking at:

• The level of distress or fear of violence.
• The effect on the complainant’s day-to-day life.
• Any substantial adverse impact.
• Whether the behaviour caused serious alarm.
• The extent of any ongoing or long-term impact.

Mitigating factors: some circumstances can reduce the seriousness of a case, such as:

• No previous convictions.
• Behaviour that was brief or isolated.
• Personal difficulties or mental ill health that help explain the conduct.
  Taking genuine steps to stop contact once concerns were made clear.

The criminal defence team at JMW will present your position clearly and drive your mitigation forward, making sure every relevant factor is identified and put before the court.

Protection Orders as an Alternative Penalty

Courts can impose restrictions even when a case has not resulted in a conviction. If the court considers that contact poses a risk, it has the power to put legally binding conditions in place.

Stalking Protection Orders

Under the Stalking Protection Act 2019, the police can ask the court to make a Stalking Protection Order at any stage of an investigation. The order can prohibit any form of contact with the alleged victim, limit where you can go, and place conditions on digital communication, including social media use. These restrictions take effect as soon as the order is made.

Breaching a Stalking Protection Order is a separate criminal offence, and the courts treat breaches seriously. A single breach can lead to arrest, further charges and the prospect of custody.

Restraining orders

Courts can impose a restraining order after a conviction or an acquittal if they consider ongoing restrictions necessary. The order limits contact, sets boundaries on movement and restricts communication in specific ways. Even where the original allegations did not lead to a conviction, breaching the order can result in arrest and potential imprisonment.

Other protective orders

Other types of protective order may be used when the case involves domestic abuse or issues within family relationships. These orders can restrict contact with family members, limit access to shared homes or prevent attendance at certain locations. Once in place, they carry legal force and any breach can lead to further criminal proceedings.