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John Hardcastle

John joined The Barrister Group in February 2019 as a civil practitioner having previously been at chambers in Leicester, Sheffield and Leeds. Since joining, he has further developed a growing property law practice (in particular cohabitation, trusts of land and residential and commercial landlord & tenant). John also has an interest and some past experience in the field of employment law.

John regularly appears in the County Court in trials and interim hearings and is able to assist with the drafting of documents and the provision of written advice at any stage in proceedings. He is prepared to consider instructions on a CFA basis in the right case and is qualified to accept instructions directly from members of the public. He is further authorised to conduct litigation.


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John Hardcastle

Prior to practising as a barrister John was employed for 16 years as a full-time operational firefighter at busy city centre fire stations dealing with all manner of emergencies. It was whilst serving as a firefighter that John embarked upon a part-time law degree, qualifying as a barrister in 2011.

After qualifying as a barrister and before starting in practice John taught law at undergraduate and postgraduate level at Sheffield Hallam University (teaching Equity and Trusts, Land Law and Intellectual Property Law) before accepting a prestigious fixed-term position in 2012/13 as a Judicial Assistant in the Court of Appeal to Lord Dyson, the then Master of the Rolls.

John is also able to advise in conference (in person or remotely via video). He gives considered and robust advice and takes into account the client's attitude to risk and the commercial realities of the situation.

John has recently returned to teaching law at Sheffield Hallam University as an Associate Lecturer (since October 2021) teaching Trusts & Equitable Wrongs, Land, Property Law & Practice and Dispute Resolution in Tort.


John's Experience

Called in 2011


Barristers in England and Wales are regulated by the Bar Standards Board

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Commercial Law

Within commercial law, John covers cases relating to:

  • Property Law
  • Contract (Commercial & Consumer)
  • Personal Injury
  • Credit Hire (Claimant & Defendant)
  • Employment Law
  • Inner Temple Exhibition Award and Duke of Edinburgh Entrance Scholarship (2010)
  • Sweet and Maxwell Law Prize, Sheffield Hallam University (Student achieving the highest marks on the LLB) (2010)
  • Russell, Jones & Walker Tort Law Prize, Sheffield Hallam University (Best student on the Tort Law Module) (2008)
  • Oxford University Press Award for Law, Sheffield Hallam University (Best 1st Year student on division’s law degrees) (2007)
  • Chief Fire Officer’s Commendation, South Yorkshire Fire & Rescue (Rescue of a man from a 150-foot tower crane) (2001)
  • Recruit Instructors’ Award, Nottinghamshire Fire & Rescue (1993)
Privacy Policy

1. This is a privacy notice that describes how, why and for how long I will process or keep your personal data in accordance with the General Data Protection Regulation (‘GDPR’).
2. The GDPR governs how an individual’s personal data is used, and your rights in relation to that data.
3.  I, John Hardcastle, have been instructed by you or your litigation friend (usually a parent), through your solicitor or agent, or via the Bar Pro Bono Unit.
4.  It is necessary for me to process your personal data in order for me to provide you with legal services, for example:

  • Advise on the prospects of litigation;
  • Advise on the value of your claim;
  • Representation at a court hearing;
  • Representation at trial;
  • Advise, review or comment on legal issues or evidence.

5. Processing means anything done to data such as: recording, organising, adapting, altering, copying, consulting, transmitting, combining, erasing or storing it.

6.The processing for the purposes listed above will take place in accordance with either Article 6(1)(a) GDPR or Article 6(1)(b) GDPR, depending on how you instructed me.

7. If you have instructed me on a direct access basis, or engaged a solicitor (or legal agent), to assist you in bringing or defending a claim then the processing is necessary to perform a contract to which you are a party (Article 6(1)(b) GDPR). To give effect to that contract (i.e. to bring a claim) it is necessary for me to process your personal data for litigation purposes.

8. If I am assisting you on a pro bono basis, it will be necessary for me to seek your consent to be able to represent you (Article 6(1)(a) GDPR). In this scenario, you will be sent a consent form.

Recipients of your data

9.  I may also be required to share your data with others, depending on the nature of your case. This may include:

(i)  Courts and other tribunals to whom documents are presented;

(ii) Your solicitors, or agent representing you, through whom I have been instructed;

(iii) Potential witnesses, experts and other persons involved in the case;

(iv) Solicitors, barristers, or other legal representatives;

(v) Ombudsman and regulatory authorities;

(vi) Education and examining bodies; and

(vii) Current, past or prospective employers.

Special Categories of Data

10.  In some cases I will have been given your personal data that is within the ‘special categories’ of data described in GDPR Article 9(1). For example, personal data that reveals your race, ethnicity, sexual preferences, political or religious beliefs, trade union membership or health. There are also restrictions for processing information regarding criminal convictions.

11. This type of personal data will only be processed where it is necessary in order to represent you in your legal claim, or advise on the prospects of a legal claim.


12. I will retain your personal data for no longer than is necessary, and where it is possible, I will anonymise your data.

13. How long your personal data is kept will depend on a number of factors. The retention period will be reviewed when the service I am providing you with is complete. However in general, I am obliged by the Bar Code of Conduct to retain records of my cases, and by HM Revenue and Customs to retain records for 6 years.

14. Once your case has concluded and fees have been paid, I shall retain only the personal data necessary for the following purposes:

(i) The legal and professional obligation to retain information relating to my cases;

(ii) To check for any potential conflict of interests that may arise in the future when I am instructed on other cases;

(iii) For use in the defence of potential complaints, legal proceedings or fee disputes;

(iv) To refer back to in future cases which raise similar legal, factual, or procedural issues.

15. The processing for the purposes listed in paragraph 14 (ii), (iii), and (iv) above, will take place in accordance with Article 6(1)(f) GDPR. That is, for the purposes of legitimate interests that are not outweighed by your interests or fundamental rights and freedoms.

16. The processing for the purposes listed in paragraph 14(i) above, will take place in accordance with Article 6(1)(c) GDPR. That is, the processing is necessary for me to comply with a legal obligation. 

Your Rights

17. Where processing of your personal data was based on your consent (see paragraphs 6 and 8) you have the right to withdraw that consent at any time. This does not affect the lawfulness of the processing based on consent before its withdrawal.

18. Withdrawal of your consent to process such data will most likely mean that I am no longer able to provide you with the legal services you seek.

19. You may request confirmation that your personal data is being processed by me and details about the personal data, the source, the processing, the purposes of the processing, the recipients and the retention period.

20. You may request a copy of your personal data that is being processed by me. You may also request rectification (i.e. correction) where there are inaccuracies in the personal data.

21. You have the right to object, on grounds relating to your particular situation, at any time, to processing of your personal data in paragraph 14 of this privacy notice. Should you object, the processing will only continue where there are compelling legitimate grounds for the processing which override your fundamental rights, freedoms and interests. 

22. Where the processing or retention of your data is necessary for the establishment, exercise or defence of legal claims, it will not be possible to object. 

23. You have the right to request that your personal data is erased where any of the following apply:

(i) The personal data are no longer necessary in relation to the purposes for which they were collected or otherwise processed;

(ii) You withdraw your consent where the basis of processing was based on consent and where there is no other ground for the processing;

(iii) Where your fundamental rights, freedoms and interests override the legitimate interests of processing in paragraph 14;

(iv) The personal data has been unlawfully processed; or

(v) The personal data have to be erased to comply with a legal obligation.

24. You have the right to request that your personal data is restricted from processing, so that it is simply stored, for the following reasons: as an alternative to deletion; so that it can be corrected; for the establishment, exercise or defence of legal claims; to verify if a legitimate ground exists (paragraph 14).

25. Where it is necessary to correct your personal data, or you have requested the restriction or erasure of your personal data, I shall endeavour to contact the recipients of the personal data, unless this involves disproportionate effort. 


26. I take appropriate physical and technical procedures to safeguard your personal data to prevent it from being accidentally lost, used or accessed in an unauthorised way. 

Complaints or Queries

27. If you have any questions regarding this privacy notice, or how I use your personal data please email me: mailto:, or my clerks: telephone 01823 247 247.

28. I shall aim to respond as soon as possible, and within 30 days.

29. You have the right to complain to the Information Commissioner's Office (ICO) if you believe I have not handled your request in an appropriate manner. For information on contacting the ICO please go to:

John's Testimonials

I was very impressed and pleased with John's pleadings and advice as well as his meticulous eye for detail. I do wish and hope that we can continue to work together.


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Contact us about working with John

If you’d like to work with John Hardcastle or any of our other TBG House barristers, send us your details and we’ll get back to you.