Giles is recognised as a leading junior in professional discipline and regulatory law by The Legal 500, 2009 and 2010 Editions.
He has particular expertise in professional discipline and regulatory matters concerning doctors, dentists, nurses, healthcare professionals, financial and investment advisors, life members, police officers, solicitors and sports men and women. His work covers advice on and appearances before the professional and regulatory governing bodies such as the Deaneries, the GMC, the HPC, the RFU disciplinary panel and the SRA; internal disciplinary hearings; and the Courts. He advises on regulatory issues relating to FSA and Liffe membership.
Examples of his work include:
- Puri v. Bradford Teaching Hospitals NHS Foundation Trust  and  EWHC 2523 Admin. A claim by a consultant urologist that Article 6 ECHR is engaged in respect of internal disciplinary proceedings such that he is entitled to an independent and impartial internal panel to hear matters of misconduct. The judge, Blair J has granted permission to appeal to the Court of Appeal.
- Dr Lim v. Royal Wolverhampton Hospitals NHS Trust  EWHC QB. A claim by a consultant anaesthetist that he has a contractual right, under a national disciplinary framework implemented by the Trust, to an assessment of his competence by an independent body, the National Clinical Assessment Service and that there has been no proper referral to NCAS. The case concerns whether the framework had been contractually incorporated, the nature of obligations under that framework and alleged breaches of the implied term of trust and confidence.
- 2010 – Acting for and advising Liffe member in respect of disciplinary proceedings under Section 5 of the Liffe Rules.
- 2010 – Advising a first-class professional cricketer on his suspension by the ECB.
- GMC v. Mr Puri [2009 -2010] – Successfully resisting the application of any interim order by the IOP.
- Dr Lakshmi v. Mid Cheshire Hospitals NHS Trust  IRLR 956 QB. Successful defence of claims by a consultant physician for specific performance of an employment contract and reinstatement; and that the national disciplinary framework (Maintaining High Professional Standards in the Modern NHS) was contractually incorporated as part of her contract of employment. The consultant was dismissed for false completion of cremation act forms.
- Operation Rhino 2008 Successfully presenting and advising on misconduct proceedings against 8 police officers, concerning serious allegations, including being improperly beholden and dishonest and improperly using confidential information. (One of the largest misconduct cases in the history of Gwent Police) Successfully resisting attempts to exclude intercept evidence obtained, from telephone monitoring, lawfully under the Telecommunications (Lawful Business Practice) (Interception of Communications) Regulations 2000.