Our statement on the sentencing of Jonathan Monsen

Jonathan Monsen was given a custodial sentence of 45 months in relation to various sexual offences involving children.

Matthew Redford, Chief Executive and Registrar of the GOsC, said:

‘When we were first made aware of concerns against Jonathan Monsen, we began our fitness to practise process and Mr Monsen was  suspended on a temporary basis from practising as an osteopath, to protect the public.  As the court case has concluded, our fitness to practise process will continue and the matter will be considered by the Professional Conduct Committee, which acts independently from the GOsC.

We recognise how upsetting and distressing this case is for any individuals affected. If you have been affected by this case, or if you have a concern about an osteopath, please do get in touch with our trained team who will be able to help you. You can contact us at: regulation@osteopathy.org.uk or 020 7357 6655 x224.’

As the regulator for osteopathy in the UK, our primary role is to protect the public and maintain the public’s confidence in osteopathy. We take action on any concerns reported to us and we have powers to remove or restrict the registration of osteopaths who do not practise to the standards we set.

The Professional Conduct Committee hears all cases concerning criminal convictions and has the power to restrict an osteopath’s registration, or remove a person from the Register of osteopaths which means they cannot legally practise, to protect the public and maintain the public’s confidence in the profession.

We require all osteopaths to meet the Osteopathic Practice Standards which set standards of competence, conduct and ethics for osteopaths to ensure patient safety and public confidence in the osteopathic profession. If a concern is raised that calls this into question, we can investigate this and take action where necessary to protect patients and the public.

Jonathan Monsen, who previously practised as an osteopath in London (Kensington and Chelsea), was charged with various offences. On 3 March 2025, he pleaded guilty to the offences of grooming, sexual communication with a child and causing/inciting a child to engage in non-penetrative sexual activity. He entered a not guilty plea to three offences of sexual assault of a child. On 28 April, an additional charge of sexual assault of a child was added to the indictment so there were four counts in total. Following the trial, the jury found that Mr Monsen was guilty of all sexual offences on the indictment. Mr Monsen was remanded in custody until sentencing.

When we were made aware of these offences we immediately started our fitness to practise process. Our Professional Conduct Committee imposed an Interim Suspension Order (ISO) when it met on 19 December 2022.

An ISO prevents an individual from practising osteopathy and will remain in place for Mr Monsen until the conclusion of our fitness to practise proceedings. An average case takes about a year to conclude and we are not able to comment while proceedings are underway. Read more about our concerns process.

Free and confidential support

Anyone involved with or affected by this case or any other case involving an osteopath has access to our Independent Support Service, which provides free, confidential emotional support (call 0300 303 1964). Alternatively, individuals can contact us directly by email at regulation@osteopathy.org.uk or speak to our trained staff by calling our Regulation team directly on 020 7357 6655 x224. Our website also has further information on how to raise a concern with us to help us keep patients and the public safe.