John Sprack practiced for a number of years as a barrister in the criminal courts. He taught Criminal Litigation at the Inns of Court School of Law (now City Law School) for 11 years, and was Director of its Bar Vocational Course and of the LLM in Criminal Litigation. He was one of the founding authors of Blackstone's Criminal Practice and now provides Continuous Professional Development courses for practicing lawyers in Advocacy and Employment Law. He was an Employment judge for 15 years. Michael Engelhardt-Sprack has a busy practice, specialising in criminal defence, employment and housing law, and has been at tenant at 1M.C.B since 2017. He has appeared in the Crown Court and the Magistrates' Court on a range of matters, including violent and sexual offences, offences involving weapons, drugs, fraud, dishonesty and driving. He has also advised and acted in appeals against conviction.