John Bate-Williams has 35 years experience at the PI Bar in London and has been the Senior Junior in Temple Garden Chambers for the last decade, now being the longest serving member of the set. Extensive experience in catastrophic injury and fatal claims, with particular expertise in brain injury and quadriplegic claims.


The Times Courtroom Joke of the Year Award – 29 December 2011


“A legend who is always a nice opponent.”
Chambers & Partners 2022

“A very clear, precise and engaging advocate.”  “He is incredibly experienced.”
Chambers & Partners 2021

“Veteran catastrophic personal injury and fatal accident practitioner with extensive experience handling maximum severity cases … an extremely experienced barrister.”
Chambers & Partners 2020

‘He has an uncanny knack of winning at trial as he is very good with witnesses and judges.’
Legal 500 2019

A very well-regarded senior junior, who can always be relied upon to give a pragmatic and sensible view.” “Has astonishing client skills.”
Chambers & Partners 2018

“A vastly experienced advocate who is instructed by insurers on high-value catastrophic and fatal injury claims. He also sits as a Recorder in the Crown Court.” Strengths: “He is a renowned advocate who is extremely skilled in catastrophic cases.”
Chambers & Partners 2016

“Continues to go from strength to strength and has built a formidable serious accident practice that covers head, back and psychiatric injury claims”

“A superb negotiator who displays great attention to detail and has excellent client skills.”
Chambers & Partners 2015 (London Personal Injury)

“Noted as much for his deft and sensitive handling of clients as for his technical ability in catastrophic injury claims of significant complexity. He is recognised as a specialist in brain injury work, receiving instructions from claimant and defendant solicitors, and is also highly experienced in claims involving severe spinal injuries and complex regional pain syndrome.”

Expertise: “Without doubt he has the skills to manage complex and sensitive head injury cases. He’s extraordinary – he’s incredibly talented and able to talk to clients from all backgrounds. A great team player.”
Chambers and Partners 2014

Privacy Notice

Thank you for choosing to instruct me in your case. I will need to collect and hold your personal information in order to represent you. I will take all possible steps to protect your personal information. I am determined to do nothing that would infringe your rights or undermine your trust. This Privacy Notice describes the information I collect about you, how it is used and shared, and your rights regarding it.

Data Controller

I am registered with the Information Commissioner’s Office (ICO) as a Data Controller for the personal data that I hold and process as a barrister. My registered address is Temple Garden Chambers, 1 Harcourt Buildings, Temple, London, EC4Y 9DA and my registration number is Z4639954.

Data Collection

The vast majority of the information that I hold about you is provided to or gathered by us in the course of your case and/or proceedings. Your solicitor and/or I will tell you why we need the information and how we will use it.

Lawful Basis for processing your information

The General Data Protection Regulation (GDPR) requires all organisations that process personal data to have a Lawful Basis for doing so. The Lawful Bases identified in the GDPR are:

  • Consent of the data subject
  • Performance of a contract with the data subject or to take steps to enter into a contract
  • Compliance with a legal obligation
  • To protect the vital interests of a data subject or another person
  • Performance of a task carried out in the public interest or in the exercise of official authority vested in the controller.
  • The legitimate interests of ourselves, or a third party, except where such interests are overridden by the interests, rights or freedoms of the data subject.

Examples of legitimate interests include:

  • Where the data subject is a client or in the service of the controller;
  • Transmission within a group of undertakings for internal administrative purposes;
  • Processing necessary to ensure network and information security, including preventing unauthorised access;
  • Processing for direct marketing purposes, or to prevent fraud; and
  • Reporting possible criminal acts or threats to public security.

My Lawful Basis is:

  • Consent of the data subject
  • Performance of a contract with the data subject or to take steps to enter into a contract
  • Compliance with a legal obligation
  • The legitimate interests of myself, or a third party, except where such interests are overridden by the interests, rights or freedoms of the data subject – I  use people’s data in ways they would reasonably expect and which have a minimal privacy impact, and/or where there is a compelling justification for the processing (being related to their pursuit or defence of litigation or other legal processes).

I use your information to:

  • Provide legal advice and representation
  • Investigate and address your concerns;
  • Investigate or address legal proceedings relating to your use of my services/products, or as otherwise allowed by applicable law;

I do not use automated decision-making in the processing of your personal data.

I collect and process both personal data and special categories of personal data as defined in the GDPR. This includes:

Client data

  • Name;
  • Email;
  • Phone number;
  • Address;
  • Payment or bank details;
  • Date of birth;
  • Location details;
  • Device IP address;
  • Financial information;
  • Medical Records;
  • Criminal Records.

I may share your personal data with:

  • Instructing solicitors
  • Opposing Counsel, for the purposes of resolving the case
  • My Chambers management and staff who provide administrative services
  • My regulator or legal advisors in the event of a dispute or other legal matter;
  • Law enforcement officials, government authorities, or other third parties to meet our legal obligations;
  • Any other party where I ask you and you consent to the sharing.

Transfers to third countries and international organisations

I do not transfer any personal data to third countries or international organisations.

I retain your personal data while you remain a client unless you ask me to delete it. My Retention and Disposal Policy (copy available on request) details how long I hold data for and how I dispose of it when it no longer needs to be held. I will delete or anonymise your information at your request unless:

  • There is an unresolved issue, such as claim or dispute;
  • I am legally required to; or
  • There are overriding legitimate business interests, including but not limited to fraud prevention and protecting customers’ safety and security.

Your Rights

The General Data Protection Regulation gives you specific rights around your personal data. For example, you have to be informed about the information I hold and what I use it for, you can ask for a copy of the personal information I hold about you, you can ask us to correct any inaccuracies with the personal data I hold, you can ask us to stop sending you direct mail, or emails, or in some circumstances ask us to stop processing your details. Finally, if I do something irregular or improper with your personal data you can seek compensation for any distress you are caused or loss you have incurred. You can find out more information from the ICO’s website http://ico.org.uk/for_the_public/personal_information and this is the organisation that you can complain to if you are unhappy with how I dealt with you.

Accessing and Correcting Your Information

You may request access to, correction of, or a copy of your information by contacting me at Chambers (address above).

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You may opt out of receiving emails and other messages from my Chambers by following the instructions in those messages.


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