“The BBC revealed last week that the News of the World (NoW) had engaged ex-policeman Derek Webb to carry out covert surveillance of more than 100 individuals. From 2003 through to 2011 Webb worked for the newspaper following celebrities, royals, politicians and others, sometimes for days, or weeks at a time. For example, former Home Secretary Charles Clarke MP is said to have been watched for more than 20 days.”
Legal Week, 14th November 2011
Source: www.legalweek.com