Greg was a solicitor in private practice for 10 years before calling to the Bar. He specialised is criminal law practicing in criminal defence exclusively. He has worked at all levels of criminal law but was involved in a large number of High Court cases including murder, rape and drug trafficking as well as conducting a high number of Sheriff and Jury trials. He was also involved in defending a number of health and safety prosecutions as a solicitor as well as dealing with a large volume of road traffic matters and proceeds of crimes cases.