Mazur and another v Charles Russell Speechlys LLP [2025] EWHC 2341 (KB) is a costs appeal with much broader implications. Decided by Sheldon J on 16 September 2025, it held that employees of authorised law firms do not gain the right to conduct litigation simply by being supervised. Only authorised or exempt persons may conduct litigation under the Legal Services Act 2007, and delegation is not permitted. This strikes at widespread practice where unqualified clerks handle litigation steps. The fallout could include defective pleadings, costs challenges, and potential criminal liability.
Mazur and another v Charles Russell Speechlys LLP [2025] EWHC 2341 (KB) is a costs appeal that decides a much larger point. The Administrative Court held that employees of an authorised firm are not themselves entitled to conduct litigation merely because they are employed and supervised. This may sound mundane, but the consequences are profound. There are many, many firms of solicitors who allow grade D fee earners, or other unqualified staff to conduct litigation, in the time hallowed phrase “under the supervision of their principals”. This reflects the practice of the profession, going back to at least Victorian times, where the backbone of any litigation department, was the time served and unqualified managing clerk.
But this case suggests that the solicitors and unqualified staff, at any firm that is continuing that practice is breaking the law. And not only the regulatory law, but doubling down by committing criminal offences to boot. That is why this case matters. That is why it could be so damaging to the profession as a whole, and so surprising that it appears to have come out of left field, without much warning. The law is otherwise trite. Only authorised or exempt persons may “conduct litigation.” Section 21(3) of the Legal Services Act 2007 does not confer that entitlement. It defines who can be regulated. The judgment was handed down by Sheldon J on 16 September 2025.
Sheldon J discussed the statutory scheme. “Conduct of litigation” is a reserved activity . Entitlement is “solely” as the Legal Services Act 2007 provides, and exists only for an authorised or exempt person. It follows that this statutory scheme does not permit delegation: an authorised or or exempt person, cannot lend their authority to the work of unauthorised or non exempt persons, who are conducting litigation. Section 21 is about regulatory reach, not authorisation. It lets the SRA write and enforce “practice,” “conduct,” and “discipline” rules against both authorised persons and their employees. It does not convert employees into authorised persons. Reading it as a licence would contradict the architecture of sections 13–19.
The judge accepted the distinction advanced by the Law Society and the SRA. Unauthorised staff may support an authorised solicitor who takes responsibility for the case. They may not themselves conduct and control litigation, even if supervised. Where does this leave matters? First, high-volume practices that let non-admitted case-handlers sign, issue and engage the court may have to re-engineer their workflows. An authorised solicitor must own and execute the reserved steps.
Second, there will be satellite disputes about earlier pleadings issued or signed by the “wrong” person. The court in Mazur declined to strike out because the defects were now cured and strike-out would cause prejudice. But not every case will be so fortunate in timing or discretion. The risk is real. Indeed, one can see real tactical advantage to an opponent to litigation, if it is apparent from the pleadings, the precedent H, the correspondence that the litigation has been conducted by someone with no authority to conduct it.
Third, and inevitably, costs will be contested. If a firm relied on an unauthorised person to conduct litigation, the opponent may resist paying for those acts. They will point to the illegality of what has been done, and point to the requirements of public policy, in disallowing such costs. Instead of the retainer being illegal or unenforceable in its formation, the performance of the retainer will be said to be tainted by illegality. On the other hand, this decision has the potential to dramatically increase costs, if delegation cannot be lawfully done.
There are interesting reasons to question the correctness of the decision or to suggest that it may be “wrong”, but at High Court level, this judgment has detonated like a bomb over the profession. I predict, with a degree of confidence, that matters will not rest here. Once the tactical struggles break out, inevitably the correctness of this decision will be put in issue, and inevitably given that the author is a High Court judge, the matters will have to be ventilated in the Court of Appeal.
I’ve always thought it unfair that costs are often allowed at lawyers’ rates for basic admin work or other work which doesn’t need a lawyer.
Paralegals and other unqualified legal professionals do much more than “basic admin work” or work that “doesn’t need a lawyer”. If that was the case, they wouldn’t exist within the work force! There are many unqualified legal professionals who have 10/20/30 years experience who work in parallel with qualified professionals; often performing the same tasks and providing the same client service with equal capability, but are able to charge lower rates to clients because of their lack of qualification, vs a qualified individual who will likely charge x3 the hourly rate. Unqualified legal professionals time, expertise and experience should not be undermined or devalued. They make litigation quick, accessible and affordable. I really hope this law gets re-worked to uphold the importance of Grade D and unqualified Grade Cs and their value in the legal workforce.
The comment wasn’t aimed at paralegals – solicitors often charge lawyers’ rates for basic admin work or work which doesn’t need a lawyer. An end to this would be welcome.
Paralegals certainly do work which requires skill and experience, but a lot of work they (and solicitors) do doesn’t. And grade C and D rates are into the hundreds of pounds per hour – hardly affordable. I would be all for paralegals being able to do more, including work which is currently reserved, but it should be at a appropriate rate, well below grade C or grade D hourly rates.
The comment wasn’t aimed at paralegals – solicitors often charge lawyers’ rates for basic admin work or work which doesn’t need a lawyer. An end to this would be welcome.
Paralegals certainly do work which requires skill and experience, but a lot of work they (and solicitors) do doesn’t. And grade C and D rates are into the hundreds of pounds per hour – hardly affordable. I would be all for paralegals being able to do more, including work which is currently reserved, but it should be at a appropriate rate, well below grade C or grade D hourly rates.
Admin work is arguably irrecoverable in any event. When recoverable it will be at grade D rate.
No, a lot of basic admin work is recovered at lawyers’ hourly rates. It shouldn’t be but often is. Hopefully this decision will put an end to this.
Paralegals and other unqualified legal professionals do much more than “basic admin work” or work that “doesn’t need a lawyer”. If that was the case, they wouldn’t exist within the work force! There are many unqualified legal professionals who have 10/20/30 years experience who work in parallel with qualified professionals; often performing the same tasks and providing the same client service with equal capability, but are able to charge lower rates to clients because of their lack of qualification, vs a qualified individual who will likely charge x3 the hourly rate. Unqualified legal professionals time, expertise and experience should not be undermined or devalued. They make litigation quick, accessible and affordable. I really hope this law gets re-worked to uphold the importance of Grade D and unqualified Grade Cs and their value in the legal workforce.
Has it really come out of left field, though?
From the SRA’s 2022 guidance on supervision (https://www.sra.org.uk/solicitors/guidance/effective-supervision-guidance/) “LSA 2007 makes no provision for unauthorised people to carry out litigation under supervision. Therefore people who are not themselves authorised to conduct litigation can only support authorised individuals to conduct litigation, rather than conducting litigation themselves under the supervision of an authorised individual.”
Or going back even further, the old practice framework rule 7 (https://www.sra.org.uk/solicitors/handbook/introAuthPrac/practising/part2/rule7/) “ If you are a manager or employee of an authorised body and you are not a lawyer of England and Wales, an RFL or a lawyer of an Establishment Directive profession, you must not:
(b)
undertake the following reserved work in England and Wales:
(ii)
the conduct of court litigation;”
I am surprised by the surprise over this.