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Jonathan Polnay

"There are not enough superlatives to do this gentleman justice; he has a prolific energy that galvanises his cases."Chambers UK 2018

Call 2000

Practice Profile

Jonathan is a specialist criminal advocate with a wide experience of serious and complex cases, often involving organised crime. He is regularly instructed by Complex Casework Units and Headquarters Divisions. Jonathan is ranked as a leading junior in Chambers & Partners UK Bar Guide 2018 (Band 1) and the Legal 500. Jonathan was appointed Junior Treasury Counsel at the Central Criminal Court by the Attorney General in November 2017. 

He is particuarly experienced in dealing with the issues arising out of cases that involve intelligence-led policing and RIPA-regulated activity and is often instructed pre-charge to advise law enforcement agencies as well as a leading junior at trial, often against silks. Jonathan has a wealth of experience in dealing with financial crime, direct and indirect taxation and money laundering as well as restraint and confiscation. In particular, Jonathan has conducted a number of cases involving large-scale fraudulent activity arising out of organised immigration crime and corruption.

Over the years, Jonathan has acted in a large of number of cases where the victim or defendant is very young, including cases of a sexual nature. Jonathan has appeared in numerous road traffic cases resulting in death or very serious injury. Having previously worked in the computer industry, Jonathan is particularly at ease when conducting cases involving the internet, computer, electronic or mobile phone evidence.

Jonathan accepts instructions from all specialist divisions of the Crown Prosecution Service, Solicitors and when appropriate Direct Professional Access "DPA". Instructions in privately funded matters are accepted subject to The (New) Standard Contractual Terms for the Supply of Legal Services by Barristers to Authorized Persons 2012. Jonathan's Privacy Notice can be downloaded here.

Reported Cases:

  • Dorling [2016] EWCA Crim 1750 – CCRC reference on murder conviction 
  • Barre [2016] Crim LR 768 – When manslaughter should be left as an alternative to murder 
  • Hamilton [2016] 2 Cr App R S – Approach to be taken to drug smuggling in prison
  • Bhatti [2016] 1 Cr App R 1 – Special procedure warrants in relation to credit reference 
  • Henry [2015] 2 Cr App R 1 – Double jeopardy trial, definition of ‘new’ evidence 
  • Patel [2013] Med LR 507 – Actus reus in offence of ill-treatment of mental patients
  • King [2012]  EWCA Crim 805 – Covert surveillance involving breaches of PACE 
  • A, B, C, D [2011] 2 WLR 647 – Parasitic accessory liability, pre-Jogee 
  • Jordan  [2009] EWCA Crim 953 - Single act propensity/coincidence in bad character

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