• Chair of Bridging the Bar (2020 – present)
  • Member of the Bar Council’s Race Working Group (2020 – present)
  • Steering group committee member of the 10,000 Black Interns Project (2021 – present)

  • The Honourable Society of the Middle Temple
  • Personal Injury Bar Association (PIBA)
  • Employment Bar Association (EBA)
  • Constitutional and Administrative Law Association (ALBA)

Instructing Mass Ndow-Njie

For more information please contact our clerks by calling +44 (0)20 7242 3555.

Mass joined 7BR in September 2021 after spending his first two years of practice at the Government Legal Department. Mass has a multi-disciplinary practice and welcomes instructions across a range of Chambers’ areas of expertise.

In July 2020, Mass became the first ever Pupil Barrister to be awarded ‘Barrister of the Week’ by The Lawyer Publication. In January 2021, he was recognised as Advocate’s ‘Pro-bono Hero of the Month’ for his dedication to a pro-bono case and the result obtained on behalf of his client. In November 2021, Mass was presented with two awards in quick succession after he was declared as the winner of the Middle Temple Young Barristers Association (MTYBA) Rule of Law Essay Competition and commended as a Future Leader at the 2021 Chambers and Partners Awards. In January 2022, Mass was listed amongst the ‘Hot 100’ Lawyers across the UK.

Mass has delivered keynote speeches within various academic and legal spaces. He has spoken to audiences in the UK Supreme Court, the Inns of Court and various universities.

Mass is committed to enhancing the equality of access into the legal profession. Most notably, he is the founder and chairperson of Bridging the Bar, a charity which aims to support aspiring barristers from statistically underrepresented groups. This experience underscores Mass’ strong ability to relate to clients coming from all walks of life.

Legal Expertise

Clinical Negligence

Mass accepts instructions in clinical negligence cases and has acted in inquests where issues relating to clinical negligence have arisen. Accordingly, Mass has acquired valuable experience cross-examining medical experts.

He provides strong and clear written advice and is able to advise on all aspects of clinical negligence claims including liability, merits, causation and quantum.

Mass’ recent instructions include matters concerning negligent care provided by care homes and nursing homes, negligent dental treatment, delayed diagnosis of cancer, the mismanagement of complex gastroenterological conditions and the mismanagement of medical conditions related to the vascular system.

Notable Clinical Negligence cases

Delayed diagnosis of cancer (2022)

Mass was instructed to advise the Executrix of an estate in circumstances where the deceased had sadly passed away following a delay in diagnosis of cancer.

Misapplication of a cannula (2022)

Mass was instructed to advise a child and her litigation friend in relation to an extravasation injury and consequential scarring suffered by a Claimant following the alleged misapplication of a cannula.

Delayed diagnosis of peripheral vascular disease (2022)

Mass was instructed to advise a Claimant on the merits of a potential claim concerning an alleged delay in diagnosing the Claimant’s peripheral vascular disease.

Failure to recognise a congenital abnormality in a baby (2021)

Mass was instructed to advise a child and his litigation friend in relation to an NHS’s trust’s failure to recognise a congenital abnormality shortly after the birth of the Claimant.


Personal Injury

Mass has gained a broad range of experience acting in personal injury cases for both Claimants and Defendants. He regularly appears in the County Court in fast-track and multi-track cases. His work in this area covers a wide range of matters including workplace accidents, occupiers’ liability claims, road traffic collisions and Highways Act claims.

Mass has experience successfully representing individuals faced with allegations of fundamental dishonesty and representing multiple Claimants in the same set of proceedings. He is also well-versed with communicating via interpreters in relevant cases.

Mass is also a contributor to the chapter on General Damages within the APIL Personal Injury Law, Practice and Precedents Loose-leaf book.


Inquests & Inquiries

Mass is regularly instructed to act in multi-day inquests on behalf of interested parties. He has appeared in the coroner’s courts in article 2 inquests and jury inquests.

Mass has acted in Inquests where issues of clinical negligence have arisen and is well-experienced in cross-examining medical experts. He has a particular interest in acting in inquests following deaths in care homes and other clinical settings. He has successfully obtained a regulation 28 prevention of future deaths report in a case involving a death within a care home.

Mass also has a proven track record of working well within teams and is currently instructed as junior counsel to the UK Covid-19 Inquiry.

Notable Inquests & Inquiries cases

Inquest into the death of Stephen Verrall (2021)

Mass was instructed in this multi-day jury inquest to represent the family of a man who died after falling from the window of a nursing home. The jury returned a lengthy narrative conclusion which recognised that the deceased’s death was avoidable. The narrative included (amongst other things) the statement that “there was a failure to meet health and safety guidelines which the home had a responsibility to be aware of.” Furthermore, the coroner issued a regulation 28 prevention of future deaths report. The inquest was covered by various press outlets.

Inquest into the death of Donald Miller (2022)

Mass is currently instructed in this multi-day inquest to represent the family of a man who died in a nursing home after he mistakenly pulled out his tracheostomy tube and staff were unable to re-insert it. The Inquest is currently part-heard after the initial listing of three days was insufficient to get through all of the relevant evidence.

Inquest into the death of Balford Glaister Foster (2022)

Mass was instructed in an Inquest to represent the family of a man who died in hospital after being diagnosed as having sepsis and appendicitis. The coroner returned a narrative conclusion which included a comment that the deceased died “in part due to the late diagnosis”.


Public Law & Information Law

Mass spent the first two years of his practice at the Government Legal Department (‘GLD’) where he conducted advisory work for a wide range of government departments. He regularly worked with instructed panel counsel on judicial review claims, and he gained an array of experience drafting defences in such claims. He is a member of the Attorney General’s Junior Junior Scheme and welcomes instructions from clients across Government.

During his time at the GLD, Mass gained substantial experience advising on requests under the Environmental Information Regulations 2014 and the Freedom of Information Act 2000. Furthermore, Mass provided (recorded) information law training intended for lawyers across the GLD.

In November 2021, Mass was declared the winner of the inaugural Middle Temple Young Barristers Association (MTYBA) Rule of Law Essay Competition. In June 2022, Mass was also appointed as junior counsel to the to the UK Covid-19 Inquiry.


Financial Crime & Financial Services

Mass welcomes instructions in cases involving financial crime and financial services. Before coming to the Bar, Mass worked as a financial trader for a multinational company and worked at one of the world’s largest professional service companies. Mass is therefore able to take advantage of these experiences by offering a unique perspective when working on financial cases.

During his pupillage, Mass was exposed to a range of cases involving allegations of financial wrongdoing. In those cases, his supervisors were advising a wide range of clients including a multinational bank, the Financial Conduct Authority and the Payment Systems Regulator on complex and confidential investigations.

Mass also has a proven track record of working well within teams and is currently instructed as junior counsel to the UK Covid-19 Inquiry.


Offshore & International

Mass welcomes instructions in Offshore and International cases. During his pupillage, Mass was exposed to a range of cases involving multiple jurisdictions such as Monaco, Thailand and Ukraine. These cases often centred around allegations of civil fraud and his supervisors were representing a wide range of high-profile clients including major companies and oligarchs.

Before coming to the Bar, Mass worked as a financial trader for a multinational company and worked at one of the world’s largest professional service companies. Mass is therefore able to take advantage of these experiences by offering a unique perspective when working on any financial cases.

Mass also has a proven track record of working well within teams and is currently instructed as junior counsel to the UK Covid-19 Inquiry.


Sports Law

Mass welcomes instructions in cases arising in a sporting context. During his pupillage, he was exposed to a range of sporting matters in cases where his supervisors were representing clients which included Premier League football clubs and a Formula One racing team. Mass has also been instructed as sole counsel in sports cases before various Football Association (‘FA’) panels.

Mass is an FA qualified football coach and prior to joining the Bar, he worked as a football coach for a Premier League Football Club. He is a keen sportsman himself and as such, he is familiar with the rules of various other sports.

Notable Sports Law cases

Representing a football player charged with Assault on a Match Official (ongoing)

Mass is currently instructed to represent a football player charged with Assault on a match official. The matter is ongoing and is due to be heard by the FA National Serious Case Panel.

Representing a football club charged with playing an ineligible player (2022)

Mass represented a football club charged with playing an ineligible player in four different matches. Mass successfully argued that any charges relating to the first two games were time-barred and that mitigating circumstances relating to the third and fourth matches meant that any punishment should be minimal.

Representing a football player charged with multiple counts of improper conduct (2021)

Mass was instructed to represent a football player charged with (1) improper conduct aggravated by reference to a person’s colour and race; (2) improper conduct including foul and abusive language; (3) improper conduct including threatening behaviour. Following Mass’ early intervention in the matter the case was closed against his client without the need for a hearing.


  • Chair of Bridging the Bar (2020 – present)
  • Member of the Bar Council’s Race Working Group (2020 – present)
  • Steering group committee member of the 10,000 Black Interns Project (2021 – present)

  • The Honourable Society of the Middle Temple
  • Personal Injury Bar Association (PIBA)
  • Employment Bar Association (EBA)
  • Constitutional and Administrative Law Association (ALBA)

Instructing Mass Ndow-Njie

For more information please contact our clerks by calling +44 (0)20 7242 3555.

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