Anna was appointed a Commissioner in January 2024. From 2014 until 2023 she was a partner in the dispute resolution team at Babbé LLP in Guernsey, undertaking litigation and mediation in the fields of financial services, trusts and banking. She was called as an Advocate of the Guernsey Bar in 2016.

Before moving to Guernsey, Anna practised a barrister, and sat as a Circuit Judge, in London. She was called to the Bar of England and Wales in 1982 and was appointed Queen’s Counsel in 2001. Her practice at the Bar included general commercial litigation, insurance coverage disputes, technology and construction disputes, and professional negligence. As a judge she tried a wide range of civil cases at Central London Civil Justice Centre, and criminal cases at Wood Green, Southwark and Isleworth Crown Courts, including complex fraud, serious sexual offences, organised crime and human trafficking. She took a particular interest in the use of scientific evidence and statistics, and was a member of a Royal Statistical Society Working Group on Statistics and the Law which produced a series of Nuffield Foundation reports on the role of probabilistic reasoning in forensic science and on DNA evidence.

From 2010 to 2014 Anna was a judicial member of the Parole Board of England and Wales, and a member of the Criminal Procedure Rules Committee.