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Call: 2006
Katherine Apps



Katherine’s practice spans public law, employment, EU, disciplinary/ regulatory and commercial law, especially where there is overlap. She has particular expertise in appellate advocacy.

Katherine is approachable and client friendly as well as straightforward and adaptable to work with. Chambers and Partners 2015 describes Katherine as "incredibly bright” who is "very good with clients”; a "pleasure to deal with” who "gives solid advice.” Chambers 2014 said "Multiple sources have been 'very impressed with her,' citing her 'great crossover knowledge' ". 

Katherine works for a wide range of clients: from Government Departments and local authorities to Trade Unions; individuals to multinational companies and Receivers. A graduate of Harvard Law School’s LL.M programme and former stagiere at the Court of Justice of the European Union, Katherine is as unfazed by a case with cross border and international elements as she is with one from "round the corner.”

Katherine regularly speaks at conferences and seminars, writes articles for the legal press and has contributed to a number of the leading text books (see below). Katherine is often happy to provide tailor made training for firms or clients.

Katherine is on the Attorney General’s C Panel of Counsel (from 1 September 2015 she will be appointed to the B Panel) and the Equality and Human Rights Commission Approved Panel .


    Public Law & Human Rights

First ranked in Chambers and Partners in 2013 as "up and coming” and now in "band 4”, Katherine is currently listed as "an incredibly bright public lawyer who is very good with clients and gives solid advice.""She's appropriately cautious and is a pleasure to deal with." Legal 500 2014 describes her as "an excellent public lawyer with a real feel for civil liberties and human rights issues”.

Katherine has experience both bringing and defending judicial review challenges, as well as advising on strategy.  Katherine has a particular interest in cases where public law and other areas (particularly employment, equality, EU and commercial law) intersect. Katherine’s recent cases involve issues including:

  • Government cuts;
  • Public sector equalities duties;
  • International, EU and domestic law duties of consultation;
  • Legitimate expectations;
  • EU free movement and state aid;
  • ECHR and Human Rights Act;
  • Procedural fairness;
  • Public sector pensions;
  • Immigration;
  • Trade union human rights;
  • Procurement, outsourcing and government contracting.

For a list of recent cases please click the downloadable CV.


Katherine regularly appears in a wide range of employment cases in Tribunals, the EAT and has appeared (both led and unled) in the Court of Appeal. She frequently advises employers, employees, trade unions and interest groups on both statutory and common law employment law issues.

Katherine has particular experience in cases involving:

  • Difficult issues of contractual interpretation;
  • Overlapping professional disciplinary and regulatory issues;
  • High Court employment disputes;
  • Cross border and international issues;
  • Collective employment issues including strikes;
  • Employment/ worker status;
  • Procedural issues;
  • Calculating damages;
  • The Police;
  • EU law.
For a list of recent cases please click the downloadable CV.

    Disciplinary/Regulatory & Sports

Katherine is a member of Chambers’ Disciplinary and Regulatory Group (DRG) which litigates and advises across all areas of disciplinary and regulatory law. Katherine is also a member of Chambers’ Sports law group. Katherine’s relevant recent experience in the disciplinary and regulatory field and in sports law includes:

  • Advising a doctor on EU rights and GMC Registration;
  • R (on the application of G) v X School and Y Council [2011] UKSC 30: Judicial review considering Article 6 of the ECHR in the context of a school internal disciplinary hearing;
  • Dwain Chambers v British Olympic Association [2008] EWHC 2028 (QB): Sprinter Dwain Chambers’ first challenge to rules preventing him from running in the 2008 Beijing Olympics;
  • Advice to the Professional Interpreters Alliance;
  • Representing an Associate Head Teacher at a 4 day school disciplinary hearing concerning child safeguarding and whistleblowing (2010-2011);
  • Advising a large accountancy firm in respect of procedural fairness requirements relating to the regulatory powers of the FSA, ACCA and ACA;
  • Advising a barristers’ chambers on the effect of the new professional rules for multi disciplinary practices at the Bar, competition law and restraint of trade.

Katherine writes and lectures regularly in these areas, most recently on the new changes to Child Safeguarding and on insurance and career threatening injury in sport.


Katherine has particular expertise where commercial law overlaps with international law, EU law, public law or employment law. Katherine understands the importance of fitting quickly into a team and can turn around drafting and advisory work at short notice.

Katherine carries out a variety of commercial work including advocacy, pleading and advice. She regularly conducts her own cases and applications, both in and out of London, in the County Court and the High Court as well as acting as a junior on more substantial matters.

Her recent commercial work involves:

  • R(Peel) v Health and Safety Executive (2013): A commercial judicial review challenge concerning the safety report for a major Terminal;
  • Advising on potential causes of action from a complex Share Option Scheme;
  • A defence and counterclaim arising out of the collapse of a joint venture;
  • Advising and pleading for a multi track trial in the Queen’s Bench Division concerning breach of contract, debt and declarations;
  • Instructed by HMRC with Julian Ghosh QC on a multi million pound capital gains tax avoidance scheme.
For a list of cases please click on the downloadable CV.

    Crossover Cases

It can be difficult to find barristers with suitable expertise where legal areas overlap in the same case. Katherine is regularly instructed in cases where there are issues which cross over between the areas above. 

Katherine has a particular interest in European and international law issues, having completed a stage at the European Court of Justice in Luxembourg and completed her LL.M at Harvard Law School.  Katherine is an active member of a comparative anti-discrimination law study group at University of California, Berkeley and the Bar European Group.

Katherine’s relevant recent experience includes:

  • Free movement, state aid and EU consultation duties in judicial review;
  • Concurrent High Court and Employment Tribunal proceedings;
  • Contractual interpretation, employee bonuses and share option schemes;
  • Human rights and employment law;
  • Areas regulated by international convention, EU law and domestic law;
  • Cases involving transnational employment problems including posted workers;
  • Commercial judicial review;
  • Human rights EU law and trade union rights;
  • Child safeguarding.

    Articles & Publications

Katherine frequently lectures and conducts seminars: most recently on Child Safeguarding in Sports; using European law in Employment cases; Human Rights and procedural fairness; transnational employment cases and TUPE.

Katherine has contributed to several leading text books including Equality Act 2010 (published by the Law Society), two chapters in the Law of Industrial Action and Trade Union Recognition 2011 (OUP) and assisting with the recent editions of Brearley and Bloch on Employment Covenants and Confidential Information (2009) and Blackstone’s Employment Law and Practice. Katherine’s journal publications include:

  • A high stakes defence: immigration-related Illegality after Hounga ELA Bulletin November 2014
  • Is there scope for "reasonable adjustment" in religious discrimination law? (with John Bowers QC)(2013) Solicitors Journal 157(29), 12-13
  • Politics, rights and unfair dismissal: the BNP bus driver (2012) ELA Bulletin (Dec) 3. 
  • Making a Move (2009) Solicitors Journal Vol 153 /42.
  • Damages claims against trade unions after Viking and Laval [2009] European Law Review 141.
  • Major Impact: the practical effect Impact v MAFF could have on employment cases [2008] New Law Journal 875. 
  • Nationality Discrimination in football: FIFA’s 6 + 5 Rule (2008) Solicitors Journal Vol 152 page 52.
  • Commission v Council: "Pillars Askew: Criminal Law EC-Style,(2006) 12 Columbia Journal of European Law 625.
  • Good Faith Performance in Employment Contracts: A "Comparative Conversation” between the US and England, (2006) 8 University of Pennsylvania Journal of Labor and Employment Law 883.
  • Six monthly sports law update for Solicitors Journal 2008-2009.