sentences:  In 1998, was appointed one of two senior prosecuting counsel in the Lockerbie bombing trial, along with Alastair Campbell QC (now Lord Bracadale).In February 2001, he was appointed Principal Advocate Depute, resigning to return to private practice in 2006.He was succeeded as Principal Advocate Depute by John Beckett QC, who would later serve as Solicitor General.