Introduction

Defending allegations of sexual offences dating back months, years, or even decades is one of the most challenging areas of criminal law. Unlike recent cases, there is rarely any forensic evidence, DNA, CCTV, or messages. The case almost always comes down to “his word against hers” – or more accurately, “what is said to have happened then” versus “what is denied now”.

Since the removal of the statute of limitations for sexual offences in 1988, there is no time limit on when a prosecution can be brought. It is common to face an allegation when 20, 30, or 40 years has passed.

This article explains the unique legal rules that apply to historic cases, how the evidence is tested, the specific defences available, and the strategy required to defend yourself effectively.

Why Historic Cases Are Different

• Loss of Evidence: Witnesses may have died or moved; documents, diaries, or records are lost; memories have faded. The law recognises this disadvantage.

• Memory and Reliability: Human memory is highly unreliable, malleable, and reconstructive. What someone “remembers” after 30 or so years may be fact, or it may be suggestion, confusion, or false memory.

• Context is lost: Social attitudes, age of consent, relationships, and behaviour norms were different decades ago – though the law applies retrospectively, context matters for credibility.

• Delay as a Defence: The fact that the allegation was made many years after the event is itself a central part of your defence.

Key Legislation

Sexual Offences Act 2003 / Sexual Offences Act 1956

The law applies as it was at the time, but standards of proof remain high.

ThgeCriminal Justice Act 2003 brought in rules on bad character, hearsay, and evidence.

thge Evidence Act 2022 introducedc a major reform which now allows judges to give juries specific directions about the dangers of relying on old memories and evidence lost due to delay. This is a game‑changer for defendants.

The Director’s Guidance on Prosecuting Historic Sexual Offences states that the CPS must only prosecute if there is enough evidence to overcome the fact that a fair trial may be impossible due to the passage of time.

The Golden Rule

In historic cases, credibility and reliability are everything. There is rarely any other evidence. Your defence is built on showing the allegation is unreliable, mistaken, or untrue.

The Investigation Phase – Critical Steps

When the police contact you, or you hear an allegation has been made, how you handle this stage determines the outcome. Most defences are won or lost before the trial even starts.

Ket factiors include:

1. Do NOT contact the complainant, their family, or friends. This will be recorded as “witness intimidation” or “admission of guilt”. It will destroy your defence.

2. Do NOT post anything on social media or speak to colleagues.

3. Do NOT explain your side to the police without a solicitor.

Legal representation

Instruct a solicitor who has specific experience defending historic sex cases. General criminal lawyers often lack the knowledge of memory science, delay arguments, and complex evidence rules. DWK lawyers possess that experience. 

The Police Interview

A prepared statement  is often the best strategy for historic cases. The lawyer can assist with the drafting of this. It can be read out during interview by the lawyer in attendance. This can then be followed by answering no comment  to all questions. The advantage of this approach is that ou have put your defence on record immediately. You have explained why the allegation is wrong. You have protected yourself from memory gaps or confusion. You cannot be accused of making it up later. Any pre-prepared statement can include:

• A denial of the specific act.

• Where you were / what you were doing at that time (if known).

• Why the allegation is untrue or mistaken.

• The delay: “This is alleged to have happened 30 years ago. I have never been accused of anything like this before. There is no explanation for why it was not reported until now.”

If you have documents, photos, diaries, letters, or employment records that prove you were somewhere else, or prove the relationship was different, give them to the police immediately.

Unlike modern cases, consent is rarely the issue in historic cases. The defence is almost always: “It never happened.” or “It is a mistake/fabrication.”

The European Convention on Human Rights (Article 6) guarantees a fair trial. If the delay is so long that you cannot possibly defend yourself because witnesses are dead, records are destroyed, or memories are gone, the case should be stopped before it even gets to court.

Your argument.

Any prepared statement might include soemthinh like,

“The allegation dates from 1985. Since then, key witnesses have died; the school/family home/club where it allegedly happened has been demolished; all records from that time have been destroyed. I cannot prove where I was or what I was doing. The evidence against me is just memory. The evidence to defend myself has been lost forever. A trial now would be unfair and unsafe.”

The case of R v H [2014]; Evidence Act 2022 confirmed  that  a trial  judge must warn the jury that delay makes evidence unreliable and makes it hard for you to defend yourself. If the prejudice is extreme, the judge can stop the case entirely as an abuse of process.

Since there is rarely physical evidence, the prosecution case is entirely based on the complainant’s memory. The lawyers job is to show that memory is unreliable, contaminated, or false.

It may be possible to instruct a Forensic Psychologist who can help explain to the jury how memory works in that memories change every time you recall them, and/or that people confuse different events or different people. Furthermore, therapy, media, or conversations with others can implant false memories that feel 100% real.  Trauma does not create accurate memories – it creates fragmented, confused ones.

Inconsistencies in accounts are often very crucial to defending these allegations. Lawyers will compare what complainants  say now vs what they said before. If they told a friend 10 years ago “nothing happened”, or gave a different date/location, this destroys credibility.

Further very relevant consderation include:

1. Did they make similar allegations against others?

2. Do they have a history of lying or false claims?

A key question of course , is why now? Why after 20, 30, or 50 years? There is almost always a trigger point. Identifying it destroys their credibility. Common motives/triggers to explore include:

• Compensation / Civil Claim: They have applied to the Criminal Injuries Compensation Authority (CICA). Money is a powerful motive.

• Family Conflict: They have fallen out with you, or are fighting over inheritance/will/property. Allegations are used as weapons.

• Therapy / Counselling: They went to therapy and “recovered memories” – the law is very sceptical of these.

• Media / Trends: High‑profile cases encourage copycat allegations.

• Mental Health: They suffer from conditions that make them confuse reality or fantasy.

• Guilt / Regret: They reinterpret a consensual relationship as abuse years later.

In these circumstances, your argument will invariably be:

“There is only one reason this allegation is made today, and it has nothing to do with the truth. It is because [inheritance/separation/money dispute] happened last year. This is a weapon, not a memory.”

Lawyers will also need to carefully analyse the details. In historic cases, people often get dates, ages, locations, and people wrong. They say it happened at X house in 1988 – but you moved out in 1986. They say they was alone with you – but records show you were working abroad/ill/in hospital/never there.

Good character

Your good character is a major asset here. In it always helpful, but not fatal, if you can demonstate:

• You have lived a law‑abiding life for decades.

• You have never been accused of anything similar before or since.

• You have held positions of trust, respect, or responsibility.

It would be helpful if you can positively asset, “If I was the type of person who did this, why has no one else ever said anything? Why, in 50 years of life, is this the only allegation? It is completely out of character.”

The Trial

The trial is a battle of credibility. Your barrister will focus the jury on these points:

1. Standard of Proof: “Beyond Reasonable Doubt”. It is not enough to think the complaint(s) might be true. The jury must be sure. In historic cases, doubt is inevitable.

2. The Danger of Delay: The judge will direct the jury: “Evidence gets lost; memories fade; the defendant is disadvantaged. Be very careful before convicting on old evidence.”

3. Corroboration: If there is none. It is one person's word against another.

4. Why Complain Now?: Human nature is that people report serious crimes quickly. If they waited 40 years, the jury will ask “Why?”. If the answer is money, revenge, or confusion, juries are more likely to acquit.

Conclusion

Defending historic sexual offence claims is uniquely difficult because the evidence that would prove your innocence has often disappeared. The prosecution relies entirely on memory and credibility.

Your defence strategy is built on the following:

1. Instruct experienced lawyers.

2. Delay: Prove the trial is unfair because evidence is/may have been lost.

3. Memory: Show memory is unreliable, contaminated, or false.

4. Motive: Explain why they are making this up now.

5. Impossibility: Prove the details don’t match reality.

The most important advice is to try not to panic, do not speak to anyone but your lawyer, and ensure you have a team who understands memory science and the specific rules of historic cases. In these trials, reasonable doubt is your best friend – and delay is the biggest reason for doubt.