Jonathan Elfer


Able to pick up a case very quickly, understand the issues and deal with it positively to the highest level of competence,” Instructing Solicitor

Personal Injury and Clinical Negligence

Jonathan acts for both claimants and defendants and is regularly instructed in Multi-Track claims concerning permanent and serious injury. He also regularly attends Fast Track trials and Small Claims hearings, particularly those arising from road traffic accidents and often involving claims for credit hire. He also attends the full range of procedural and applications hearings before the High Court and County Courts.

Jonathan has a busy paperwork practice, is able provide full advice on liability and quantum and has extensive experience in drafting letters of claim, pleadings and applications in a variety of proceedings.

W v A (2022) – represented the claimant in a clinical negligence action for failure to diagnose cervical cancer leading to unnecessary treatment and significantly poorer prognosis

B v E (2021) – represented the claimant in a multi-track personal injury claim involving  a cyclist hit by a car. Six figure settlement secured in compensation for a permanent elbow injury causing significant disability on the labour market.

B v D (2021) – acted for the claimant, a former student at the defendant school in a Multi-Track claim for damages for personal injuries and future handicap on the labour market following a permanent, deforming hand injury suffered during a leaver’s day prank.

M v C (2018) – appeal against a decision of the Criminal Injuries Compensation Authority’s to withhold an award of compensation in a case of historic sexual abuse of a 7-year-old child.


Data Protection and General Civil Work

Having experience across the spectrum of legal disciplines, Jonathan accepts instructions in wide a range of civil claims, including contractual disputes and disciplinary proceedings. He has also acted for a number of clients in so-called “data breach” cases, notably where extremely sensitive identifying data has been disclosed in the context of confidential court proceedings.

H v S (2021) – data breach claim brought by adoptive parents whose details were wrongly disclosed to the birth family by the local authority during care proceedings

J v E (2020) – represented the respondent former-head-teacher in disciplinary proceedings advancing robust fitness to stand trial and abuse of process arguments

W v L (2018) – claim for Judicial Review arising from a challenge to a Legal Aid Capital Contribution Order for over £140,000.00.



Jonathan is able to advise on all aspects of possession and disrepair claims. He has represented claimants and defendants in a wide range of cases and has particular expertise in claims alleging trespass where a valid tenancy or other interest in land is claimed.

Prior to commencing pupillage, Jonathan worked for a number of years as a self-employed Advocate, appearing on a daily basis in the County Courts and High Court predominantly in housing claims where possession orders were sought.

B v K (2019) – successful claim for unlawful eviction securing damages at trial in a case where the Defendant had unlawfully sublet his council property before illegally evicting the terminally ill claimant.

B v L (2018) – advised on prospects of appeal against a discharge of the local authority’s duty to house on the grounds of intentional homelessness

D v D (2018) – successful claim for possession brought against a trespasser who had overstayed a lodging agreement


Inquests and Public Inquiries

Following from his work on the Infected Blood Inquiry, Jonathan has a growing practice in inquests and inquiries, which compliments his Criminal and Personal Injury expertise.

SD  (2022) – Inquest into the death of a victim of the Contaminated Blood scandal who received contaminated blood products in the 1970s/1980s

Infected Blood Inquiry (2019) – extensive work assisting the legal team representing over 1000 core participants in the Contaminated Blood Inquiry, particularly in the gathering of evidence.



Jonathan’s criminal practice spans all aspects of criminal defence. He has appeared in cases ranging from murder trials in the Old Bailey to common assault charges before the Magistrates’ Court. He has represented clients accused of fraud, drugs offences, sexual offences and assaults of varying severity and often receives repeat instructions and referrals from satisfied clients.


Although his practice focuses primarily on criminal defence, Jonathan has experience of prosecuting, including on behalf of railway companies, and is also instructed to prosecute private prosecutions.


R v W (2021) – unanimous acquittal of man charged with ABH against a woman met on Tinder raising self-defence

R v D (2021) – defence of client charged with s.18 GBH for stabbing an unarmed man 5 times in a street fight; not guilty of s.18 GBH but guilty of s.20

R v D (2021) – county lines drug case alleging a conspiracy to supply class A drugs, involving over 60,000 pages of phone material. Secured a plea to supply of class B drugs and the immediate release of the client.

R v A (2021) – defence of client charged with a £220,000 fraud on a national bank following the takeover of an account, involving hundreds of thousands of pages of phone, banking and computer evidence

R v B (2019) – co-defending in a murder trial at the Old Bailey as Junior Alone, client charged with attempting to pervert the course of public justice.



Inner Temple

South Eastern Circuit

Personal Injury Bar Association

Criminal Bar Association