Serious fraud is one of the most complex areas of UK criminal law. Investigations can last years, involve multiple agencies, and carry consequences that extend far beyond a prison sentence — including the seizure of assets, confiscation of proceeds, and lasting damage to professional reputation. Yet many people who find themselves under investigation do not fully understand what serious fraud is, who investigates it, or what the process looks like. This guide provides a clear overview of all three.
Our criminal defence solicitors in Bolton have experience representing individuals and businesses facing serious fraud allegations at every stage — from the first contact with investigators through to Crown Court proceedings and beyond.
What Is Serious Fraud?
There is no single statutory definition of serious fraud in English law. The term is used to describe a category of large-scale, complex financial crime that typically involves significant sums of money, sophisticated methods, and — in many cases — multiple defendants or corporate entities.
The Serious Fraud Office (SFO), which is the primary agency responsible for investigating and prosecuting this type of offending, generally considers a case to fall within its remit where it involves fraud, bribery, or corruption that is:
- Of significant complexity or public interest
- Involving potential proceeds or losses of at least £1 million (though this is not a fixed threshold)
- Requiring specialist investigative and prosecutorial expertise
In practice, serious fraud encompasses a wide range of conduct. Common examples include:
- Tax fraud and VAT fraud — deliberate misrepresentation to HMRC to avoid or reclaim tax
- Director and company fraud — dishonest conduct by company directors including false accounting, fraudulent trading, and misuse of company funds
- Investment fraud and Ponzi schemes — misleading investors about the nature or returns of an investment
- Procurement fraud — manipulation of tender processes or supply chains, often in public sector contracts
- Bribery and corruption — offering, giving, requesting, or receiving bribes in a business context
- Insider trading — using privileged information to gain an unfair advantage in financial markets
- Banking and mortgage fraud — providing false information to obtain credit or financial products
Who Investigates Serious Fraud in the UK?
Several agencies have the power to investigate serious fraud, and in complex cases more than one may be involved simultaneously.
The Serious Fraud Office (SFO)
The SFO is the lead agency for the most complex and high-value fraud, bribery, and corruption cases in England, Wales, and Northern Ireland. It has unique powers under the Criminal Justice Act 1987 — most notably the power to compel individuals to answer questions and produce documents, even where doing so might be self-incriminating in other proceedings.
Critically, refusing to comply with an SFO notice under Section 2 of the Criminal Justice Act 1987 is itself a criminal offence. If you receive a Section 2 notice, specialist legal advice must be taken immediately.
HMRC
Her Majesty’s Revenue and Customs investigates tax fraud, VAT fraud, excise duty fraud, and related financial crime. HMRC has its own specialist criminal investigation teams and can refer cases to the Crown Prosecution Service (CPS) for prosecution.
The Financial Conduct Authority (FCA)
The FCA investigates financial services misconduct, including insider dealing, market manipulation, and mis-selling. It has both civil and criminal enforcement powers and can prosecute serious cases in its own right.
The Police and National Crime Agency (NCA)
For fraud cases that intersect with organised crime, money laundering, or cross-border criminality, the National Crime Agency and specialist police economic crime units — including the City of London Police’s Economic Crime Directorate — may lead or assist in the investigation.
The Crown Prosecution Service (CPS)
Where the SFO is not involved, the CPS Fraud Division prosecutes serious fraud cases brought to it by other agencies, including HMRC and the police.
How Does a Serious Fraud Investigation Work?
Serious fraud investigations follow a broadly similar pattern regardless of which agency is leading them, though the specific procedures and powers vary.
Stage 1: Intelligence Gathering
Most investigations begin long before the suspect is aware they are under scrutiny. Investigators gather financial records, bank statements, company filings, communications, and third-party data. This intelligence phase can last months or years in complex cases.
Stage 2: Restraint Orders and Asset Freezing
At an early stage — often before any arrest — investigators may apply to the court for a restraint order to freeze the suspect’s assets. This prevents money or property from being dissipated before any confiscation order can be made after conviction. A restraint order can be made without notice to the suspect and can cover assets held by third parties if they are believed to represent the proceeds of crime.
If you become aware that a restraint order has been made against you or your assets, contact a specialist solicitor without delay. There is a right to challenge a restraint order, but legal advice must be taken quickly.
Stage 3: Search and Seizure
Investigators typically execute search warrants at homes, business premises, and sometimes the premises of associates. Computers, phones, financial records, and documents will be seized and examined forensically. The volume of material gathered in serious fraud cases is often enormous — it is not unusual for investigations to involve millions of documents.
Stage 4: Interview Under Caution or Compelled Interview
At some point, investigators will want to question the suspect. This may happen in one of two ways:
Voluntary interview or arrest and interview under caution: You have the right to have a solicitor present. You also have the right to remain silent, though in some circumstances adverse inferences can be drawn from silence. The decision about what — if anything — to say in interview is one of the most consequential decisions in any criminal case and must be made with expert legal advice.
Compelled interview (SFO Section 2 notice): If the SFO is investigating, they can compel you to attend an interview and answer questions. Refusal is a criminal offence. However, evidence obtained through a compelled interview generally cannot be used against you directly in a subsequent criminal prosecution — though it can be used in other ways. The rules around this are complex and specialist advice is essential.
Our criminal defence team regularly attends police station interviews and SFO interviews with clients. Having a solicitor present from the outset is not optional in serious fraud cases — it is essential.
Stage 5: Charging Decision
After the investigation concludes, the relevant prosecutor — whether the SFO, CPS, or HMRC — will make a charging decision. They must be satisfied that there is sufficient evidence to provide a realistic prospect of conviction and that prosecution is in the public interest.
At this stage you may also be offered a Deferred Prosecution Agreement (DPA) if the suspect is a corporate entity. DPAs allow companies to avoid prosecution in exchange for paying financial penalties, cooperating with investigators, and implementing compliance reforms.
Stage 6: Crown Court Proceedings
Serious fraud cases are almost always heard at the Crown Court before a judge and jury. These trials are notoriously lengthy — complex cases can run for months — and involve highly technical financial evidence. Expert witnesses, forensic accountants, and specialist counsel are routinely instructed on both sides.
Our Crown Court representation team has experience in complex financial crime proceedings and works alongside specialist counsel where required.
Stage 7: Confiscation Proceedings
If there is a conviction, the prosecution will typically seek a confiscation order under the Proceeds of Crime Act 2002 (POCA). This is a separate set of proceedings after sentencing in which the court assesses the benefit obtained from criminal conduct and orders the defendant to pay a sum equivalent to that benefit — even if the money has already been spent. Confiscation proceedings can be every bit as consequential as the criminal trial itself and require specialist legal representation in their own right.
What Are the Penalties for Serious Fraud?
The penalties for serious fraud conviction vary depending on the specific offence charged, but are severe across the board:
- Fraud by false representation (Fraud Act 2006): up to 10 years in prison
- Fraudulent trading: up to 10 years in prison
- Tax evasion: up to 7 years (summary offences) or unlimited (on indictment)
- Bribery (Bribery Act 2010): up to 10 years in prison
- Insider dealing: up to 7 years in prison
- Money laundering: up to 14 years in prison
In addition to imprisonment, defendants face unlimited fines, director disqualification, confiscation orders, and in some cases proceeds-of-crime asset recovery that extends beyond the confiscation order itself. The reputational and professional consequences are also severe and lasting.
What Should You Do If You Are Under Investigation?
If you know or suspect that you are under investigation for serious fraud — whether because you have been contacted by investigators, had your premises searched, received a Section 2 notice, or become aware that your assets have been restrained — the most important thing you can do is take specialist legal advice immediately.
Do not speak to investigators without a solicitor present. Do not attempt to move, transfer, or dissipate assets if a restraint order is in place or may be imminent. Do not destroy documents — this is a separate criminal offence. Do not discuss the matter with colleagues, employees, or associates who may also be under investigation.
Our serious fraud solicitors will advise you on your position, attend any interview or hearing with you, and build the strongest possible defence from the earliest stage.
Related topics: Money Laundering · Confiscation and Restraint Proceedings
How Hi Solicitors Can Help
Serious fraud cases require a different kind of legal representation to most criminal matters. The investigations are longer, the evidence more complex, and the stakes higher. Our solicitors in Bolton have the experience, the technical knowledge, and the professional network to represent you effectively at every stage — from the moment an investigation begins through to trial and any subsequent confiscation proceedings.
We will be honest with you about your position from the very first consultation, advise on the realistic prospects of your case, and work closely with you to build a defence that addresses the specific allegations you face.
Call 01204 371 414 for a free initial consultation with our serious fraud solicitors. All enquiries are treated in the strictest confidence.
187b Derby St, Bolton, BL3 6JT · hisolicitors.co.uk
Frequently Asked Questions
Q: What is the difference between fraud and serious fraud?
All fraud involves dishonesty for financial gain, but serious fraud refers specifically to large-scale, complex cases that typically involve significant sums of money, sophisticated methods, or conduct of major public interest. Serious fraud is generally investigated by specialist agencies such as the SFO rather than ordinary police forces, and is almost always prosecuted at the Crown Court rather than the Magistrates’ Court.
Q: Who investigates serious fraud in the UK?
The Serious Fraud Office (SFO) handles the most complex and high-value cases. Other agencies involved in fraud investigation include HMRC (tax fraud), the Financial Conduct Authority (financial markets misconduct), the National Crime Agency (fraud linked to organised crime), and specialist police economic crime units. The Crown Prosecution Service prosecutes cases referred by agencies other than the SFO.
Q: What is a Section 2 notice from the SFO?
A Section 2 notice is issued under the Criminal Justice Act 1987 and requires the recipient to attend an interview and answer questions asked by SFO investigators. Unlike a standard police interview, refusing to comply with a Section 2 notice is a criminal offence. However, evidence obtained through a compelled interview is generally subject to restrictions on how it can be used in subsequent criminal proceedings. If you receive a Section 2 notice, contact a specialist solicitor immediately before responding in any way.
Q: What is a restraint order?
A restraint order is a court order made under the Proceeds of Crime Act 2002 that freezes a defendant’s assets to prevent them being dissipated before a confiscation order can be enforced after conviction. It can be made before arrest or charge, without notice to the suspect, and can cover assets held by third parties. There is a right to challenge a restraint order, and specialist legal advice should be taken urgently if one is made against you.
Q: How long do serious fraud investigations take?
Serious fraud investigations are typically lengthy. Complex SFO cases can take three to five years from the start of the investigation to the conclusion of a trial. Simpler cases investigated by HMRC or the police may move more quickly, but even these routinely take 12 to 24 months. The extended timeline makes early legal representation even more important — decisions made at the outset of an investigation can significantly affect the outcome years later.
Q: Can a company be prosecuted for serious fraud?
Yes. Companies and other corporate entities can be prosecuted for fraud and related offences. The SFO has increasingly focused on corporate prosecutions in recent years, particularly using Deferred Prosecution Agreements (DPAs), which allow a corporate to avoid prosecution in exchange for financial penalties, cooperation, and compliance reforms. Directors and senior officers of the company may also face personal prosecution alongside the corporate entity.
Q: Will I definitely go to prison if convicted of serious fraud?
Not necessarily, though custody is the starting point for the most serious cases. Sentencing in fraud cases depends on the specific offence, the amount involved, the defendant’s role, and any mitigating factors — including early guilty pleas, cooperation with investigators, and evidence of remorse. In some lower-level cases, suspended sentences or other non-custodial outcomes are possible. A specialist solicitor can advise on the realistic sentencing range for your specific circumstances.
