Coercive & controlling behaviour.
Coercive control is a pattern crime. No single message proves it — and no single message disproves it. The law now recognises what victims have always known: control lives in the drip-feed of monitoring, isolation, humiliation and threat, spread over months. That makes the complete message record the central exhibit.
Part of our Legal Guides series. General information, not legal advice.
What coercive control means.
Coercive and controlling behaviour is a sustained campaign by one person to dominate another: controlling money, movements, friendships and phone use; constant checking-up and demands for replies; humiliation and degradation; threats about the children, about "consequences", about what will happen if the victim leaves.
Since 2015 it has been a specific criminal offence, and since 2021 it sits at the heart of the statutory definition of domestic abuse. In the family court, it is one of the most commonly raised allegations in child-arrangements proceedings — and one where the court has been explicitly told to look at the whole pattern, not a schedule of isolated incidents.
Typical strands of a coercive-control allegation:
- Monitoring and surveillance — demands to know where you are, who you're with, read receipts policed within minutes.
- Micro-regulation of daily life — what to wear, when to sleep, who you may see.
- Financial control — allowances, demands for receipts, blocked access to accounts.
- Isolation — engineered fallings-out with family and friends.
- Threats and punishment — about the children, disclosure of private material, or self-harm used as leverage.
The statutes.
"A person (A) commits an offence if— (a) A repeatedly or continuously engages in behaviour towards another person (B) that is controlling or coercive, (b) at the time of the behaviour, A and B are personally connected, (c) the behaviour has a serious effect on B, and (d) A knows or ought to know that the behaviour will have a serious effect on B."Serious Crime Act 2015, section 76(1) — maximum sentence five years' imprisonment.
"Serious effect" is defined in s76(4): the behaviour either causes B to fear, on at least two occasions, that violence will be used against them, or causes serious alarm or distress which has a substantial adverse effect on B's usual day-to-day activities. Since the Domestic Abuse Act 2021 amended the offence, the parties no longer need to live together — ex-partners and family members are covered through the "personally connected" definition.
"Behaviour is 'abusive' if it consists of any of the following— (a) physical or sexual abuse; (b) violent or threatening behaviour; (c) controlling or coercive behaviour; (d) economic abuse; (e) psychological, emotional or other abuse; and it does not matter whether the behaviour consists of a single incident or a course of conduct."Domestic Abuse Act 2021, section 1(3) — the first statutory definition of domestic abuse, expressly including controlling or coercive behaviour.
The Home Office has issued statutory guidance on controlling or coercive behaviour (updated 2023, issued under s77 of the 2015 Act), with detailed examples of the behaviours prosecutors and courts should recognise. In the family court, Practice Direction 12J defines controlling and coercive behaviour for child-arrangements purposes and requires the court to consider it at every stage.
How the courts approach it.
- F v M [2021] EWFC 4 (Hayden J) — the landmark family-court analysis of coercive control: the court found a prolonged campaign of controlling behaviour by examining the cumulative pattern across the whole relationship, rather than weighing incidents one by one.
- Re H-N and Others [2021] EWCA Civ 448 — the Court of Appeal's guidance in four conjoined appeals: where coercive or controlling behaviour is alleged, that pattern should ordinarily be the court's primary focus, and incident-by-incident "Scott Schedules" risk obscuring it.
- K v K [2022] EWCA Civ 468 — fact-finding hearings into such allegations should only be held where necessary and proportionate to the child-welfare decision the court actually has to make.
Pattern, relevance, protection.
Under PD12J, once coercive control is alleged the court must decide whether the allegation, if true, would be relevant to the arrangements sought; whether a fact-finding hearing is needed; and how the child and the alleging parent are protected in the meantime. Findings are made on the balance of probabilities.
Following Re H-N, judges are directed away from asking "is each incident proved?" and towards "does the evidence, taken as a whole, show a pattern of coercive or controlling behaviour?" — and, if so, what that means for the child under the welfare checklist.
Questions the court will effectively be asking of the evidence:
- Is there repetition and continuity, or a one-off?
- Did the behaviour escalate over time, especially around separation?
- What was the effect — fear, changed routines, lost work, lost friendships?
- Does the record corroborate or contradict each party's narrative?
Proving a pattern is a data problem.
A pattern allegation cannot be fairly proved — or fairly rebutted — with a handful of screenshots. What persuades courts is the shape of the whole record: volume, timing, escalation, and each hostile message shown in its full context.
- Volume and frequency — 40 "where are you" messages in an evening reads very differently from four.
- Timing — late-night barrages, messages timed to sabotage work or sleep, instant escalation when replies slow down.
- Escalation — does control-language intensify month on month, particularly after separation is raised?
- Context preservation — the messages before and after every flashpoint, so nothing is cherry-picked by either side.
- Cross-source corroboration — do emails, call logs and bank transfers tell the same story as the chats?
Message frequency & control-language over time Illustrative example
Fictional data, for illustration only. Bars: messages received per month. Line: share of those messages containing monitoring or control language ("where are you", "who were you with", "you're not going", demands for proof). This is the shape courts are told to look for: escalation of a pattern.
From 20,000 messages to one visible pattern.
LegallyHeard ingests the full WhatsApp/SMS/email record and produces exactly what a PD12J-era court wants: a dated timeline, frequency and escalation charts, flagged monitoring/control language with every hit tied to its source message, and context clusters around each flashpoint so nothing is presented out of context.
Try the shape of it now on our fictional coercive-control sample chat — the demo runs entirely in your browser.
Check the sources yourself.
- Serious Crime Act 2015, s76 — the criminal offence (legislation.gov.uk).
- Domestic Abuse Act 2021, s1 — statutory definition of domestic abuse; s2 defines "personally connected".
- Home Office: Controlling or coercive behaviour — statutory guidance framework (2023) — gov.uk publication page (guidance document downloadable as PDF).
- Family Procedure Rules, Practice Direction 12J — child arrangements and contact orders where domestic abuse is alleged.
- F v M [2021] EWFC 4 — Find Case Law (The National Archives).
- Re H-N and Others [2021] EWCA Civ 448 — Find Case Law (The National Archives).
- K v K [2022] EWCA Civ 468 — BAILII.
- CPS legal guidance: controlling or coercive behaviour.
- Legal aid: domestic abuse evidence gateway — gov.uk.
The pattern is already in your phone.
Load our fictional coercive-control sample into the live demo and watch the escalation chart draw itself — then imagine it on your real record.