What Do Criminal Defence Lawyers London Do?

What Do Criminal Defence Lawyers London Do?

October 01, 2026

When someone faces a criminal allegation, it can be difficult to know what to do next. The police process, court procedure and legal terminology can feel unfamiliar, particularly for someone dealing with a criminal case for the first time. A criminal defence solicitor provides legal advice and representation to help a person understand the process and respond appropriately.

Criminal defence lawyers London can support clients at different stages of a criminal case, from police investigations and interviews through to Magistrates' Court and Crown Court proceedings. Their work involves much more than appearing in court. They may review evidence, advise on legal options, prepare cases, communicate with other parties and help clients understand what is required at each stage.

What Do Criminal Defence Lawyers London Do?

Criminal defence lawyers represent people who are suspected, accused or charged with criminal offences. Their role is to protect their client's legal interests while ensuring that the case is prepared properly.

The work can begin before a person is formally charged. A solicitor may provide advice during a police investigation, attend a police station interview or advise someone who has been asked to attend voluntarily.

Once proceedings begin, the solicitor may deal with court hearings, evidence, case preparation, bail, pleas and trial preparation.

The exact role depends on the circumstances. A straightforward case may require a different level of preparation from a serious Crown Court case involving several witnesses or complex evidence.

Criminal Defence Lawyers London and Police Investigations

A criminal defence case can start while the police are still investigating an allegation.

The police may gather information from witnesses, review CCTV, examine digital devices, collect documents or obtain other evidence. During this stage, a person may be contacted by the police or asked to attend a police station.

A criminal defence solicitor can explain the investigation process and discuss the person's legal position.

They may also:

  • Explain the reason for police contact
  • Discuss the allegations
  • Explain the interview process
  • Review information provided by the police
  • Advise on legal rights
  • Attend a police interview
  • Explain what may happen after the interview

Early legal advice can help a person understand the situation before making important decisions.

What Do Criminal Defence Lawyers Do at a Police Station?

Police station representation is an important part of criminal defence work.

If a person is arrested and questioned, they can request legal advice. In many circumstances, advice at the police station is available without charge.

A solicitor can speak with the client and explain the purpose of the interview. They can also advise on the procedure and, where appropriate, attend the interview.

This can be particularly useful for someone who has never experienced a police interview before.

The solicitor does not decide what happened or replace the client's account. Instead, they provide legal advice based on the information available.

Criminal Defence Lawyers London and Legal Advice

One of the main roles of a criminal defence solicitor is to explain the law in a way the client can understand.

Criminal proceedings involve rules that can affect how a case progresses. A solicitor can explain the current stage of the case and what actions may be required.

For example, the client may need advice about:

  • Police interviews
  • Bail conditions
  • Charges
  • Pleas
  • Court hearings
  • Evidence
  • Witnesses
  • Trial preparation
  • Sentencing
  • Appeals

The solicitor should also explain important deadlines and documents.

Clear advice allows the client to understand the decisions that may need to be made.

Reviewing Evidence

Evidence is a major part of criminal defence work.

The evidence available will depend on the allegation. It may include witness statements, CCTV, photographs, messages, emails, financial documents, forensic evidence or information obtained from digital devices.

A solicitor can review relevant material and identify issues that may need further investigation.

The defence team may also compare the available evidence with the client's account.

In complex cases, the amount of evidence can be substantial. A careful review can help the legal team understand the issues that need to be addressed during preparation.

Preparing a Defence Case

Criminal defence lawyers do not simply wait for a hearing and then respond.

Much of the work takes place before the case reaches court.

Preparation may include:

  • Taking detailed instructions
  • Reviewing evidence
  • Identifying legal issues
  • Obtaining relevant documents
  • Contacting witnesses where appropriate
  • Preparing applications
  • Communicating with the prosecution
  • Preparing legal arguments
  • Working with experts where required
  • Preparing for hearings and trial

The amount of preparation depends on the complexity of the case.

A case involving one straightforward allegation may require limited preparation. A serious case involving several defendants, witnesses and large amounts of evidence can require much more work.

Criminal Defence Lawyers London and Magistrates' Court

Many criminal cases begin in the Magistrates' Court.

The Magistrates' Court deals with less serious offences and some offences that can be dealt with either in the Magistrates' Court or Crown Court.

A criminal defence solicitor can represent a client at hearings and explain what is happening.

Depending on the case, the solicitor may deal with:

  • The first hearing
  • Plea
  • Bail
  • Case management
  • Evidence issues
  • Legal arguments
  • Sentencing
  • Preparation for trial

The solicitor can also explain whether the case may remain in the Magistrates' Court or proceed to the Crown Court.

Criminal Defence Lawyers London and Crown Court Cases

Serious criminal cases may proceed to the Crown Court.

Crown Court cases can require detailed preparation because they may involve complex evidence, several witnesses and serious allegations.

Criminal defence lawyers may work with a barrister where specialist advocacy is appropriate.

Preparation may involve reviewing prosecution evidence, preparing the defence case, considering witness evidence and dealing with legal issues before the trial.

A solicitor may continue to manage the case even where a barrister is instructed to conduct advocacy.

The client should be told who is involved and what each member of the legal team will do.

Advising on Bail

Bail can be an important issue in criminal cases.

A person may be released while an investigation continues or while court proceedings are ongoing. Bail can sometimes include conditions.

Conditions may relate to matters such as residence, reporting requirements or contact with certain people.

A solicitor can explain the conditions that apply and advise the client about compliance.

If circumstances change, the client should seek legal advice before taking action that could conflict with their bail conditions.

Advising on Pleas

A plea is an important decision in criminal proceedings.

Depending on the circumstances, a defendant may plead guilty or not guilty.

A solicitor can explain the procedure and the legal implications of the available options.

The decision should be based on the individual circumstances and appropriate legal advice.

A solicitor should explain the relevant issues clearly rather than pressuring a client into a decision.

Criminal Defence Lawyers London and Trial Preparation

If a case proceeds to trial, preparation becomes particularly important.

The defence team may need to consider:

  • The prosecution evidence
  • Defence evidence
  • Witnesses
  • Expert evidence
  • Legal arguments
  • Documents
  • Court procedure
  • Issues that may need to be raised before trial

The legal team will prepare according to the circumstances of the case.

Where a jury trial takes place, the defence team will work within the applicable court procedure and present the case through the appropriate legal process.

Dealing With Specialist Evidence

Some criminal cases involve technical or specialist evidence.

This may include:

  • Forensic evidence
  • Digital evidence
  • Computer analysis
  • Mobile phone evidence
  • Cell site information
  • Drug analysis
  • Facial mapping
  • Financial evidence

Where appropriate, a solicitor may consider whether specialist advice or expert evidence is required.

Not every case needs an expert. The need depends on the nature of the evidence and the legal issues involved.

A solicitor with experience in complex criminal matters can identify when technical evidence needs closer attention.

Criminal Defence Lawyers London and Sentencing

If a defendant is convicted or pleads guilty, sentencing may become the next stage.

A criminal defence solicitor can explain the sentencing process and relevant factors.

The court considers the circumstances of the offence and other relevant matters when determining sentence.

A solicitor may provide information about the client's circumstances and make appropriate submissions to the court.

The type and severity of sentence depend on the offence, circumstances and applicable sentencing law.

Criminal Defence Lawyers London and Appeals

In some circumstances, a defendant may have grounds to appeal a conviction or sentence.

Appeals have specific procedures and time limits.

If you believe there may be grounds for an appeal, it is important to seek legal advice as soon as possible.

A solicitor can review the circumstances and explain whether an appeal may be available and what the relevant procedure involves.

An appeal is not automatic simply because a defendant disagrees with a decision.

Helping Clients Understand Their Responsibilities

A criminal defence solicitor does not make every decision for the client.

The solicitor provides legal advice, explains options and handles appropriate legal work. The client may still need to provide information, attend hearings and comply with court or bail requirements.

For this reason, communication between the client and solicitor is important.

The client should tell the solicitor about changes in circumstances, new documents or any contact from the police or court.

Explaining Legal Costs and Funding

Criminal defence lawyers can also explain the financial side of a case.

Some clients may qualify for Legal Aid, depending on the case and relevant eligibility requirements.

Police station legal advice is also available under the applicable arrangements in many circumstances.

If a case is privately funded, the solicitor should explain the fees and what work they cover.

Costs can depend on:

  • The seriousness of the allegation
  • Number of hearings
  • Amount of evidence
  • Whether the case goes to trial
  • Number of witnesses
  • Expert evidence
  • Barrister involvement
  • Length of preparation

Discussing funding at an early stage can help avoid uncertainty later.

Why Communication Matters

Good communication is an important part of criminal defence work.

A client should understand what is happening and what they need to do.

A solicitor should explain significant developments, court dates and important decisions in clear language.

Clients should also feel able to ask questions when they do not understand a legal term or procedure.

When choosing criminal defence lawyers London, ask how the firm manages communication and who will be your main point of contact.

What Information Should You Give Your Solicitor?

A solicitor needs accurate information to provide appropriate advice.

When you first meet your lawyer, provide any documents relating to the case.

These may include:

  • Police letters
  • Bail paperwork
  • Charge sheets
  • Court notices
  • Summonses
  • Previous correspondence
  • Evidence supplied to you
  • Details of upcoming hearings

It can also help to prepare a timeline of relevant events.

Do not alter or remove potentially relevant information. Instead, give your solicitor the information they need to assess the circumstances properly.

Supporting Vulnerable Clients

Some people involved in criminal proceedings may need additional support.

This may include young people or clients who have difficulty understanding the process.

Criminal defence solicitors can explain the proceedings in clear language and consider the client's individual needs.

Where appropriate, additional safeguards or specialist support may also be relevant.

This is an important consideration when choosing criminal defence lawyers London, particularly where communication or participation may be more difficult.

How to Choose Criminal Defence Lawyers London

There are several practical factors to consider when selecting a solicitor.

Look at their:

  • Criminal defence experience
  • Experience with your type of allegation
  • Magistrates' Court experience
  • Crown Court experience
  • Approach to communication
  • Legal Aid arrangements
  • Private fee structure
  • Experience with specialist evidence
  • Availability
  • Professional credentials

Do not choose a solicitor based only on advertising claims.

Ask direct questions about your case and make sure you understand who will handle it.

Questions to Ask Criminal Defence Lawyers London

Before instructing a firm, you may want to ask:

Have you handled cases similar to mine?

This helps establish whether the solicitor has relevant experience.

Who will handle my case?

You should know who your main contact will be.

Could my case go to the Crown Court?

Your solicitor can explain the possible route based on the allegation.

Can I qualify for Legal Aid?

Ask the firm to assess your circumstances.

What will your fees cover?

If the case is privately funded, request clear information about the expected costs.

What happens next?

A solicitor should explain the immediate steps and any important deadlines.

How Advice Wise Solicitors Can Help

Advice Wise Solicitors provides criminal defence services for clients facing a wide range of allegations. The firm states that it is accredited by the Law Society in Criminal Litigation and provides representation at the police station, Magistrates' Court and Crown Court.

Its criminal defence work includes matters such as assault, robbery, burglary, fraud, money laundering, sexual offences, drug offences and driving offences.

Advice Wise Solicitors also highlights experience with specialist areas including forensics, cell site analysis, computer analysis, facial mapping and drug analysis.

For people seeking criminal defence lawyers London, the firm provides legal advice and representation based on the circumstances of each case. It also states that it supports vulnerable clients, including young people and clients who may need additional assistance during criminal proceedings.

When Should You Contact Criminal Defence Lawyers London?

You should consider obtaining legal advice as soon as you know that you may be involved in a criminal investigation or prosecution.

You do not need to wait until your case reaches court.

Early advice may help you understand what is happening and what steps may follow.

If you have been arrested, you can ask for legal advice at the police station. If you have been invited to attend voluntarily, you can also seek advice before attending.

If you have already been charged or received court papers, contact a solicitor promptly so you can understand the next stage and prepare appropriately.

Conclusion

Criminal defence lawyers London provide support at many stages of the criminal justice process. Their work can begin during a police investigation and continue through police interviews, Magistrates' Court proceedings, Crown Court cases, sentencing and appeals where appropriate.

A criminal defence solicitor can explain your legal position, review evidence, prepare your case, represent you in court and advise you about important decisions.

The right solicitor should have relevant experience, communicate clearly and understand the type of case you are facing. It is also important to discuss Legal Aid or private fees at an early stage.

If you are facing a criminal allegation, seeking appropriate legal advice early can help you understand your rights, responsibilities and the next steps in your case.