Consent and Intoxication: Can You Be Convicted If Both People Were Drunk?

Can You Be Convicted If Both People Were Drunk?

The two elements the prosecution must prove

Under the Sexual Offences Act 2003, a person consents to sexual activity when they agree by choice and have the freedom and capacity to make that choice.

For offences such as rape, assault by penetration and sexual assault, the prosecution must generally establish that the complainant did not consent and that the accused did not reasonably believe they were consenting.

These are separate legal requirements. The complainant’s ability to consent must be considered alongside what the accused believed and whether that belief was reasonable.

The burden of proof remains with the prosecution, subject to specific statutory presumptions that may apply in certain circumstances.

Why mutual intoxication is not a defence

The fact that both people had been drinking does not automatically mean the sexual activity was consensual.

Someone may believe that an encounter was mutual when the other person was too intoxicated to make a genuine choice. Equally, consuming alcohol does not necessarily mean a person lacked the capacity to consent.

The court examines the evidence surrounding the encounter rather than assuming that mutual intoxication establishes either consent or its absence.

The accused’s own intoxication does not make an otherwise unreasonable belief in consent reasonable.

How Alcohol Can Affect the Capacity to Consent

Capacity is assessed on the facts, not a formula

Alcohol does not automatically remove someone’s capacity to consent. A person may be drunk and still able to make a genuine decision about sexual activity.

However, intoxication can reach a point where that ability is lost. The Court of Appeal has confirmed that consent given while drunk may still be valid, provided the person retained the capacity to choose.

A person does not have to be unconscious to lack capacity. Someone who appears awake or responsive may still be unable to make a meaningful choice.

No fixed amount of alcohol determines when capacity is lost. Each case depends on the evidence.

What the court looks at

The court focuses on the complainant’s actual state of mind at the relevant time, not simply on how much alcohol was consumed. 

Alcohol can have a disinhibiting effect without removing capacity, but it can also progress to a point where the ability to make a real choice is gone.

No fixed threshold or grid system applies. 

The jury considers the totality of the evidence, which may include witness observations, the behaviour of both parties, messages sent at the time and any other material that speaks to the complainant’s condition.

Involuntary intoxication and drink spiking

Where someone has been given alcohol or drugs without their consent, additional legal provisions may apply.

The Sexual Offences Act 2003 contains evidential presumptions about consent where a substance was administered without the complainant’s agreement and was capable of leaving them stupefied or overpowered.

If the statutory conditions are established, the law presumes an absence of consent and reasonable belief in consent unless sufficient evidence raises an issue to the contrary.

This differs from cases where both parties voluntarily consumed alcohol, although capacity and reasonable belief remain central questions.

The circumstances of any suspected drink spiking must be assessed carefully, including what substance was involved and what the accused knew.

How a Reasonable Belief in Consent Is Assessed

The test is objective

The law considers whether the accused genuinely believed the complainant consented and whether that belief was reasonable in the circumstances.

Simply stating that you thought the other person agreed is not enough. The court looks at the situation as a whole, including the complainant’s behaviour and apparent condition.

Being intoxicated yourself does not lower the standard used to assess whether your belief was reasonable.

If the complainant was showing signs of being unable to make a choice, those circumstances may affect whether a belief in consent could reasonably have been held.

Steps taken to check

The court also considers what steps, if any, the accused took to ascertain whether the complainant was consenting. The absence of any attempt to check can undermine a claimed belief in consent. 

Communication during the event, the complainant’s verbal and physical behaviour and the surrounding circumstances are all relevant to this assessment.

Why this matters if you were also drunk

An accused who was intoxicated may have perceived consent where there was none and may have missed signs of incapacity in the complainant. 

The court applies the same objective standard regardless. People sometimes believe that being drunk themselves provides some legal protection in cases involving intoxication and consent. It does not. 

The standard of what a reasonable person would have understood remains constant.

What If One or Both People Cannot Remember What Happened?

A memory gap does not automatically establish whether consent was given or whether someone had the capacity to consent.

Alcohol can affect a person’s ability to remember events, but memory loss afterwards does not necessarily mean they were incapable of choosing at the time.

For example, a complainant may have little recollection of an encounter despite appearing alert during parts of it. The court must assess what the available evidence shows about their actual condition.

Similarly, an accused person’s inability to remember events does not prove that consent existed or provide a defence by itself.

Where one or both people have limited recollection, evidence from witnesses, messages, CCTV and other records may be particularly important.

What Evidence Can Help Establish What Happened?

Digital communications

Text messages, social media messages and dating app conversations before, during and after the event may help establish the nature of the interaction and the apparent state of both parties. 

These communications can speak to what was agreed, what was said and how each person was presenting at the time, all of which bear directly on questions of consent and intoxication.

Preserve any relevant messages immediately. Do not delete, alter or discard them. Even messages that seem embarrassing or personal may be important to the defence.

CCTV and location data

CCTV footage from venues, public transport and surrounding streets can establish a timeline, the visible state of both parties and their movements. 

Location data from mobile phones may also form part of the evidential picture. Footage is frequently overwritten within days, so requesting preservation through a solicitor as early as possible matters.

Witness accounts

Friends, bar staff or bystanders who observed both parties may be able to give evidence about behaviour and the apparent level of intoxication of either person. 

Identifying potential witnesses early, while recollections are still fresh, can be valuable in any case involving consent and intoxication.

Medical and other records

Medical records, evidence of injuries and any assessment of alcohol consumption levels may be relevant and may be subject to disclosure obligations. 

A solicitor can advise on what disclosure to seek from the prosecution, what records to preserve and what material can be requested.

Do not attempt to contact the complainant directly or through anyone else while any investigation is ongoing. Such contact carries serious legal risks, addressed in the next section.

What to Do If the Police Contact You

Do not attend an interview without legal advice

If the police contact you in connection with an allegation involving consent and intoxication, you have the right to free and independent legal advice before and during any interview under caution. 

Attending a voluntary interview or a formal interview without first speaking to a solicitor is a significant risk. 

Anything said in an interview can be used as evidence, and an unadvised account can create difficulties that are hard to address later.

Request a solicitor as soon as police contact is made, whether by phone, in person or by letter.

Preserve relevant records

Do not delete messages, photographs or other digital material, even if they feel personal or embarrassing. 

Write down everything you can remember about the event, the timeline and who else was present while the detail is still fresh. These notes may assist your solicitor in building an accurate account.

Comply with any conditions or restrictions

If the police impose bail conditions or a court imposes a restraining order or non-contact requirement, comply with every condition strictly. 

Any breach is a separate criminal offence and will be treated seriously by the court. It may also affect bail decisions and sentencing if the main allegation proceeds.

Avoid contact with the complainant

Do not attempt to contact the complainant directly or through third parties, including through friends or social media. 

Any such contact can be treated as witness intimidation and may lead to additional serious criminal charges, regardless of the intention behind it.

Penalties and Sentencing for the Offence Charged

The sentence for a sexual offence depends on the charge, the seriousness of the conduct and the circumstances established by the evidence.

In England and Wales, rape and assault by penetration both carry a maximum sentence of life imprisonment. Sexual assault carries a maximum sentence of ten years’ imprisonment.

These are the legal maximums, not automatic sentences following conviction.

Courts apply the relevant Sentencing Council guidelines, considering factors such as harm, culpability and aggravating or mitigating circumstances.

Where alcohol and consent are disputed, the court must first determine whether the offence has been proved. If there is a conviction, the sentence is assessed under the guideline for that particular offence.

Notification requirements

A conviction for a qualifying sexual offence may result in notification requirements, commonly referred to as being placed on the sex offenders register.

These requirements involve providing the police with specified personal information, including details of where the person lives.

The notification period depends on factors including the offence, sentence and age at conviction.

For adults, a custodial sentence of more than six months but less than thirty months generally results in a ten-year notification period.

Sentences of thirty months or more result in indefinite notification requirements, subject to the applicable review arrangements.

Notification requirements may also apply where no custodial sentence is imposed.

Sexual harm prevention orders

A Sexual Harm Prevention Order may be imposed where the statutory conditions are met and the court considers restrictions necessary to protect the public from sexual harm.

Such orders can restrict activities including internet use, contact with certain people or travel.

They may be made following conviction for a qualifying offence or through a separate application where the legal requirements are satisfied.

Breaching a Sexual Harm Prevention Order without reasonable excuse is a criminal offence.

A solicitor can explain whether an order may be sought and advise on its proposed terms.

The Role of a Sexual Offences Solicitor

A solicitor experienced in sexual offence cases can examine the allegations and identify what the prosecution must prove.

Where alcohol is involved, this may include assessing the complainant’s capacity to consent, the accused’s belief in consent and the evidence surrounding the encounter.

A solicitor can review witness statements, communications, CCTV footage and medical records, as well as advise on any gaps or inconsistencies.

They can also represent you during police interviews and court proceedings, advise on possible defences and explain the consequences of a conviction, including notification requirements or protective orders.

Obtaining advice early may help preserve evidence that could otherwise become unavailable.

Speak to a Sexual Offences Solicitor

If you are being investigated for a sexual offence involving alcohol, understanding the allegations and the available evidence is important before responding to police questions.

Our sexual offences solicitors can assess your circumstances, explain the legal requirements concerning consent and advise on the next steps.