JUNIOR PROFILE

Jennifer Thelen

UK Bar 2026

 39 Essex Chambers

Ranked in 4 practice areas

Data Protection

London (Bar)

Administrative & Public Law

London (Bar)

Education

London (Bar)

Immigration

London (Bar)

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Chambers Review

Provided by Chambers

UK Bar

Data Protection - London (Bar)

Band 2
Individual Editorial

Jennifer Thelen has significant experience in data protection law. She is regularly engaged by government entities to tackle issues under the Freedom of Information Act, as well as advising clients on more novel matters such as the use of artificial intelligence. Thelen is a member of the Attorney General's A Panel of Counsel.

Strengths

She is a good advocate.

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Administrative & Public Law - London (Bar)

Band 3
Individual Editorial

Jennifer Thelen is frequently sought out to act on and advise on public law matters relating to immigration, human rights and healthcare. She often represents central government, including the Home Office, as well as NHS organisations and trade unions.

Strengths

Jennifer Thelen is an excellent and highly pragmatic barrister who is a trusted adviser on tactical matters as well as advocacy requirements.

Jennie is excellent to work with: she is incisive, commercial and responsive.

Jennifer is an excellent barrister who always provides clear, pragmatic and expert advice.

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Education - London (Bar)

Band 4
Individual Editorial

Jennifer Thelen is a member of the Attorney General's A Panel of counsel and has a solid reputation for SEN proceedings, discrimination claims and school exclusion disputes. Clients look to her for higher education matters involving contract law and she routinely receives instructions by central and local government to appear before the First-tier and Upper Tribunals.

Strengths

Jenny is great. She is really precise. She is warm and has a lot of qualities that make a great barrister.

I have worked with Jennifer on complex cases involving children. She is very reasonable and very good at pushing her cases out while remaining courteous and polite.

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Immigration - London (Bar)

Band 5
Individual Editorial

Jennifer Thelen is a well-regarded junior who regularly appears for the Secretary of State in immigration matters. A member of the Attorney General's A Panel, Thelen regularly appears in SIAC as well as courts in the first instance and at appeal.

Strengths

Jenni is particularly adept when dealing with data protection and security-related issues arising in the context of immigration. She is also lightning quick in her written pleadings.

She is really clever and smart. She's very decisive and sensible.

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Ranked Barristers at 39 Essex Chambers (247)

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