Tim WalkerDirector

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Tim Walker

Tim has been practising criminal law for over 25 years. He set up his own firm in 2000 which merged with Sonn Macmillan in 2006 to form Sonn Macmillan Walker. Tim is acknowledged in both Chambers and the Legal 500 as a leading criminal defence practitioner. He is in charge of the firm's Crown Court team.

Tim has extensive experience representing those charged with complex and serious crime. He has a particular interest in homicide cases and has represented clients accused in joint enterprise murders, hit man cases, domestic violence and drug war allegations. He has dealt with many cases involving multiple defendants, tens of thousands of pages of evidence and often running for weeks or months at trial.

Recent cases include acting for clients accused of murder, terrorism, drug supply (hundreds of kilos of cocaine), and commercial scale cigarette smuggling.

Tim also has expertise in representing those accused of sexual offences. Often working with a leading QC he has acted for clients accused of familial rape, sexual assault, exposure, possession and making of indecent images and outraging public decency (upskirting). He understands the importance of pre-charge advice and action in such cases and routinely assists clients awaiting a decision on charge.

As a fraud expert Tim has acted in cases involving business crime, VAT fraud, and large thefts from individuals.

Tim is currently acting in two terrorism cases, an evasion of duty (smuggling) case, cases involving firearms, the supply of drugs, and a number of sexual offences. Much of his current work involves defending those accused of being involved in organised crime groups.

Chambers 2019

Chambers states, “Tim Walker heads the firm’s Crown Court team, and specialises in representing clients facing the most serious criminal charges, including murder, drugs conspiracy and armed robbery. According to sources, he has really good judgement and is great on law, as well as being fantastic at getting the best out of counsel.”

Chambers 2020

“Tim Walker provides advice to clients on a wide range of criminal charges, including highly complex joint enterprise murder cases and multi-handed drugs conspiracies. One source says he is “really astute and a great lawyer,” with another adding: “He is always calm in a crisis and able to focus quickly on what matters and what does not.””

Tim represents both privately-funded and legally-aided clients.

Tim was appointed a Recorder of the Crown Court in 2016. He is a former Treasurer of the London Criminal Courts Solicitors’ Association.

Current cases

Liverpool Crown Court – conspiracy to supply 300kg cocaine – a complex case involving a large number of defendants;

Leicester Crown Court – cheating the public revenue and money laundering – a substantial VAT fraud involving 16 defendants;

Reading Crown Court – client accused of raping his wife;

Inner London Crown Court – client accused of voyeurism by filming a visitor to his home and a neighbour;

Croydon Crown Court – client (and father of new-born baby) accused of possession of indecent images of children. Child protection issues arose as a result;

Southwark Crown Court – criminal damage to ‘The Morning Walk’ by Thomas Gainsborough;

Southwark Crown Court – conspiracy to defraud – City of Westminster Council pension fraud of £1m.

Expertise in defending murder cases

I have particular expertise in defending people charge with murder. My cases have included:

R v M – shooting in East London, alleged to have been committed by drug dealers who fell out with victim. Prosecution case was that M was the driver to and from the scene of the shooting and that he knew of the common intent to shoot the deceased. Acquitted of murder.

R v A – self defence where, in the course of disarming his step father who was armed with a knife, my client stabbed him. Technical evidence on martial arts to demonstrate the manoeuvre was know to certain martial arts and explained the nature of the injury.

R v Q – mistaken ID case where 7 people ran past a person drinking outside a pub and one fatally stabbed him. Joint enterprise murder case where my client was said to be the spotter for the target. Q accepted he was the spotter but thought the intention was a fist fight, not a stabbing. Acquitted of murder and conspiracy to GBH.

R v C – Carjacking where robber fatally stabbed car owner. C was said to be the lookout and guilty by joint enterprise. Acquitted of murder.

R v M – hitman shooting where our client was said to have organised the shooting. Highly complex telephone evidence analysis. Ultimately found not guilty as the prosecution could not prove that our client had been in possession of the phone.

R v H – Woman stabbed her partner to death. Prosecution were persuaded to accept a guilty plea to manslaughter and drop the murder charge. 18 months’ imprisonment imposed and she was released shortly after the conclusion of her case.

R v S – First defendant in trial of 11, all accused of murder. A huge street fight involving knives where one youth was killed and two others seriously injured. Acquitted of murder by the trial judge after legal argument about the state of the evidence.

R v S – 15 year old was robbed. He was accused of inciting his cousins to shoot the person who had robbed him – acquitted of murder.

R v K – Man pushed leading human rights lawyer under tube train – acquitted of murder by reason of diminished responsibility.