Blackstone's Criminal Practice is a book about English criminal law. The First Edition was published by Blackstone Press in 1991. The Twenty-seventh Edition was published by Oxford University Press in 2016. In 2016, the Judicial Executive Board selected Blackstone's Criminal Practice 2017 as the principal practitioner text for all criminal courts in England and Wales.The Editors in Chief are Professor David Ormerod QC and David Perry QC. David Ormerod was previously the joint editor (since 2008) with Lord Justice Hooper.