Lyndon was called to the Bar by Gray’s Inn in 2010. He specialises in criminal law, particularly sentencing. In 2014 he became the General Editor of Current Sentencing Practice and The Sentencing Referencer, and the Editor of the Criminal Appeal Reports (Sentencing), taking over from the late Dr David Thomas QC. He is also a co-author of The Sexual Offences Handbook (2nd edition). Previously, Lyndon co-wrote Banks on Sentence (6th – 9th editions). Lyndon is regularly asked for comment on criminal law issues and has appeared on BBC Breakfast, Channel 5 News and various local and national BBC Radio stations. He has written for The Times and The New Statesman and writes monthly for Criminal Law and Justice Weekly. In 2012 he established the UK Criminal Law Blog with two barristers. The blog aims to explain the criminal law to lay people and to combat poor and inaccurate law reporting by the mainstream media.