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Can You be Charged With Fraud Even if You Didn’t Know You Were Breaking the Law?
BACK
19 May 2026
Summary

Ignorance is not a defence

Why some people are unexpectedly drawn into fraud investigations

Digital communication can change a picture

Why early legal advice matters

When people think about fraud cases, they often assume that they are straightforward. In many people’s minds, fraud involves deliberate deception, clear criminal intent, and people who are in full awareness that their actions are breaking the law.

Actual fraud investigations are usually more complex. Some allegations arise from business decisions, financial arrangements, or communications that prosecutors later interpret as having been dishonest. In some cases, individuals become involved in an investigation because they signed documents they did not fully understand, relied on advice from others, or failed to appreciate the legal significance of their actions.

This does not automatically mean that someone is guilty of fraud. It does, however, explain why fraud investigations can become highly complex, particularly where there are questions around intent, knowledge, and dishonesty.

Ignorance is not a defence

The first thing to be aware of is that ignorance of the law is not a defence in legal cases. Saying you did not realise that your conduct was illegal will not, on its own, prevent prosecution. However, fraud investigations do still require prosecutors to prove dishonesty and intent, which means a defendant’s understanding, belief, and actions at the time can become important.

Under the Fraud Act of 2006, prosecutors must prove that a person acted dishonestly and intended to make a gain, or cause a loss. The legal discussion therefore goes beyond simply asking whether something inaccurate or misleading took place. Courts may also examine what someone believed at the time, what information they had access to, and whether their actions were deliberately dishonest by ordinary standards.

The legal approach to dishonesty under UK law changed following the Supreme Court’s decision in Ivey vs Genting Casinos (2017) and was confirmed for criminal law purposes in R vs Barton and Booth (2020). The court must determine the defendant’s actual state of knowledge or belief about the facts, and then consider whether “ordinary, decent” people would view their conduct as dishonest.

This is a fine line to tread. It does not mean a defendant can avoid liability simply by claiming that they believed their conduct was acceptable. However, it does mean fraud investigations tend to involve detailed arguments about intent, understanding, and interpretation. This is one reason fraud cases are often less clear-cut than people see at first glance.

Why some people are unexpectedly drawn into fraud investigations

Fraud investigations are among the most forensic processes in the legal system, often developing gradually and expanding as more information is uncovered. What begins with one individual under investigation can take on wider scope as more companies and transactions become involved. As investigations develop, attention may turn to directors, employees, account managers and even family members.

In business settings especially, responsibilities are frequently shared. One person may handle invoices, another may approve payments, and someone else handles communication with clients and/or regulators. When concerns arise later, investigators may examine whether individuals understood what was happening, and whether they knowingly misled anyone.

This does not mean that everyone connected to a business decision that is under suspicion immediately becomes criminally liable. However, it does explain why some people unexpectedly are asked to attend an interview despite being under the impression they were simply carrying out professional responsibilities. These investigations may become stressful because people struggle to separate poor judgment, workplace pressure, misunderstanding, and active dishonesty in their own minds while investigations are ongoing.

It is all too easy in the “fog of war” to make a decision you believe will exonerate you or resolve the issue, which is then interpreted in context that you did not foresee. The implications may turn against you, even if unfairly, because you did not know the full picture and lacked vital information that could have changed your decision.

Digital communication can change a picture

Modern fraud investigations are heavily informed by digital evidence. Emails, text messages, internal chats and other records may all be reviewed during an investigation. Messages written quickly or casually can later appear damning when examined in isolation months afterwards.

Investigators may analyse patterns of communication alongside financial records and timelines. In some cases, prosecutors may argue that certain language demonstrates awareness, concealment, or intent to mislead. Defence teams may argue in response that messages have been misunderstood, stripped of context, or overinterpreted. 

This is one reason why fraud solicitors may often warn people against trying to explain everything informally once they become aware of an investigation. Improvised explanations, deleted messages, or responses that over-rely on fallible human memory can create additional difficulties if the written record turns out to contradict them. 

People should also avoid assuming that investigators will naturally understand the full context of communications. Fraud investigations can often involve piecing together thousands of documents over long periods of time, and context may be lost if evidence is viewed too narrowly.

One of the biggest misconceptions surrounding fraud investigations is that people only need, or should only seek, legal advice once they have been formally charged. In reality, interviews, document requests, and communication with investigators can all affect the direction of a case long before a decision has been taken to prosecute. Fraud solicitors note that even voluntary interviews under caution can still form part of the criminal process and may later be relied upon in evidence.

That is why obtaining legal advice early is not simply about preparing for court. It is about understanding the allegation and its implications, protecting your position during the investigation, and responding carefully and strategically rather than emotionally. Fraud investigations often create heavy personal pressure – especially where careers, finances, and reputations are involved. People naturally want to defend themselves fully and immediately, or persuade investigators that there has been a misunderstanding.

Fraud investigations are, however, rarely resolved through immediate informal reassurance. Questions around dishonesty, intent, and state of mind are often central to these cases, and even when someone insists that they acted with integrity and benign intent, the way evidence is interpreted may ultimately determine how the case is handled.

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