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Jen is great to work with. She listens, understands concepts quickly and provides clear to-the-point advice.

Chambers uk 2026
About

Jennifer Harper is an experienced criminal lawyer, specialising in financial crime and regulatory investigations, including those conducted by the Serious Fraud Office, Crown Prosecution Service, Trading Standards, and local authorities.

Jennifer defends clients in fraud and other white-collar crime investigations. She advises clients at all stages of the investigation, providing straightforward, strategic advice for both corporate and individual clients. She has experience of advising clients in responding to production orders, Section 2 Notices issued by the Serious Fraud Office (SFO), the submission of Suspicious Activity Reports (SARs) to the National Crime Agency (NCA), and cash forfeiture proceedings. 

Jennifer has experience of advising corporate clients in relation to private prosecutions, having both defended and prosecuted complex, multi-jurisdictional, frauds and other offences. 

She also advises corporate clients on regulatory investigations involving local authorities, Trading Standards, the Advertising Standards Agency, the Driver and Vehicle Standards Agency, and the Food Standards Agency.

Jennifer undertakes defence work on behalf of solicitors' firms and individual solicitors facing investigation by the SRA. 

She represents high-net-worth individuals in general crime matters concerning serious allegations of sexual and physical assault.

Jennifer is a member of the Private Prosecutors' Association, Young Fraud Lawyers Association and Female Fraud Forum.

Recent work
  • Acted for an iconic worldwide brand taking a private prosecution against counterfeiters in the UK.
  • Advised the CEO of a PLC in relation to allegations of fraud and misleading the market.
  • Advised various developers and landlords on criminal investigations by local authorities for breaches of planning law.
  • Represented a high-net-worth individual on multiple allegations of historic physical abuse.
Accolades
  • Ranked as an Associate to Watch, Corporate Crime & Investigations, Chambers UK 2026
  • Ranked as an Associate to Watch, Financial Crime: Private Prosecutions, Chambers UK 2026
  • "Jennifer is the best and is number one for us." Chambers UK 2026
  • "Jen is great to work with. She listens, understands concepts quickly and provides clear to-the-point advice."  Chambers UK 2026
  • "Jennifer Harper and others are amazing. Very professional and very smart. Their hearts are in the right places." Legal 500 2026
  • "'Ian Ryan, Jennifer Harper, and Kyle Phillips are my main points of contact. All extremely impressive lawyers and very experienced in this field." Legal 500 2026
  • "Jen Harper is an excellent associate, with a professionalism that will take her far." Legal 500 2026
  • Ranked as a Next Generation Partner, Fraud: White Collar Crime, Legal 500 2026
  • Ranked as a Leading Associate, Private Prosecutions, Legal 500 2026
  • Ranked Associate to Watch, Financial Crime: HNWI, Chambers HNW Guide 2025
  • Listed as Leading Associate, Fraud: White-Collar Crime, Legal 500 2025
  • "Jennifer Harper is fearsome in her defence of her clients, highly committed and enormously thorough and engaged. Her judgment and tactical understanding is excellent." Legal 500 2025
  • Listed as Leading Associate, Private Prosecutions: Tier 2, Legal 500 2025
  • "Jennifer Harper is an outstanding senior associate with exceptional judgement. Diligent, very bright, and wholly unflappable. Scores top marks in every skillset." Legal 500 2025
  • "She can grasp all the issues and salient points quickly." Chambers UK 2025
  • "I think she's got the full package: a star of the future."  Chambers UK 2025
  • "Jennifer Harper is a highly proficient and technical lawyer with excellent attention to detail." Chambers HNW 2024
  • "Jennifer is a deeply impressive and experienced criminal law solicitor." Chambers UK 2025
  • "I'm impressed by how quickly she's grappled with some of the complex law and she has good judgement on it as well." Chambers UK 2025
  • "She's really responsive and committed." Chambers UK 2025
  • "The issues were highly complex and multi-jurisdictional and it struck me how always prepared she was." Chambers UK 2025
  • "Jennifer Harper is extremely bright, equally personable and has great judgement." Chambers UK 2025
  • "Jennifer is extremely bright, equally personable and has great judgement." Chambers UK 2025
  • Ranked Associate to watch, Corporate Crime & Investigations (London Firm): Chambers UK 2025
  • Ranked Associate to watch, Financial Crime: Private Prosecutions (London Firms): Chambers UK 2025
  • Listed as Rising Star, Fraud: White-Collar Crime, Legal 500 UK 2024
  • Listed as Rising Star, Private Prosecutions, Legal 500 UK 2024
  • "Jen Harper is a senior associate who is always the best informed in the room." Legal 500 UK 2024
  • "Jennifer Harper has a good reputation." Legal 500 UK 2024
  • "Jennifer Harper – an outstanding associate who combines intelligence, diligence and judgment in equal measure." Legal 500 UK 2024
  • "Ian Ryan, Kyle Phillips, and Jen Harper are excellent and know this field inside out." Legal 500 UK 2024
  • Ranked Associate to watch, Financial Crime: Corporates, Chambers UK 2024
  • Ranked Associate to watch, Financial Crime: Private Prosecutions, Chambers UK 2024
  • "She is bright and really thinks about her cases. She listens, goes away to think and comes back with interesting perspectives." Chambers UK 2024
  • "Jennifer is very hard-working and dedicated, and has a calm and methodical way she approaches the work." Chambers UK 2024
  • "She is extremely bright and very hard-working, and has gained considerable experience in financial crime. She has excellent judgement." Chambers UK 2024
  • "Jennifer is extremely bright, has excellent judgement and is a star of the future." Chambers UK 2024
  • "Jennifer's level of detail and recall is exemplary. She communicates her point of view effectively and has been great to work with." Chambers UK 2024

 

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