Mark Shields (born 1957) Is a former British law enforcement officer and security consultant. He began his police career at an early age, and rose rapidly through the ranks. After nearly three decades of service with the City of London Police Essex Police and Scotland Yard, in 2005 he moved to Jamaica to take up a new position as Deputy Police Commissioner of the Jamaica Constabulary Force. In that capacity, he came to worldwide attention as he led the investigation into the death of Pakistan's cricket coach Bob Woolmer in the run-up to the 2007 Cricket World Cup finals. The Guardian credits him as "the British officer who changed policing in Jamaica".