Senior Leadership Team

Tracy is one of the most experienced physiotherapy expert witnesses in the country, bringing over 30 years of advanced clinical practice to her medico-legal work. Holding an LLM in Medical Law and Ethics from De Montfort University alongside her BSc in Physiotherapy, Tracy combines rare clinical depth with a genuine command of the legal framework in which expert evidence operates.
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Her clinical career has been spent at the forefront of complex paediatric and orthopaedic rehabilitation, leading specialist services across limb reconstruction, congenital conditions, birth injuries, major trauma and amputee care at NHS consultant level. She is a qualified non-medical prescriber with recognised expertise in acute and chronic pain management, and has lectured nationally and internationally in her field.Since 2014, Tracy has prepared expert witness reports for claimant and defendant solicitors across a wide range of instructions, and her LLM ensures her evidence is not only clinically authoritative but legally precise. As a mentor, she draws on this exceptional foundation to help expert witnesses produce reports that stand up to the most rigorous scrutiny.

Catherine is a leading expert witness in advanced nursing practice and primary care, with over 30 years of clinical experience and one of the most extensive medico-legal portfolios in her field. A Registered General Nurse and Advanced Nurse Practitioner, she holds an MSc in Advanced Clinical Practice from the University of the West of England and has trained extensively through Bond Solon and the Expert Witness Institute, including Confidence in the Courtroom and Conferences with Lawyers.
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Her clinical career spans general practice, urgent and unscheduled care, infection prevention, prescribing and military nursing as a former Officer in the British Army. Since 2013, Catherine has prepared breach of duty reports for both claimant and defendant solicitors, and has led the clinical negligence function of a medico-legal expert witness company, overseeing mentoring, quality assurance, recruitment and business development at a senior level.
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A guest lecturer at the University of the West of England and a vetted member of the Expert Witness Institute, Catherine brings an exceptional combination of clinical authority, legal knowledge and leadership to her mentoring role at Maggie Sargent & Associates.

Em is Operations Manager and a member of the senior leadership team, responsible for the day to day running of the business and for keeping its moving parts connected. She works closely with the office team and with the solicitors who instruct us, making sure instructions are handled properly from the moment they arrive and that nothing is lost between the people involved. Much of the role is about pace and communication: knowing where every case sits, who needs what next, and spotting problems before they reach a client. Em came to operations from onboarding and marketing, which gives her a practical view of how the whole business fits together.