The chief counterterrorism official in Britain is retiring after five years on the job. Peter Clarke announced today he will retire from the Metropolitan Police in January 2008 after 30 years there and five years as the national coordinator of terrorist investigations. During his tenure, Clarke led the investigation into the July 7, 2005 bombings on the London Underground and a bus, which killed 52 people. Numerous attempted attacks, including a copycat bombing on July 21, 2005 and this summer’s attempted attack on a London nightclub, along with various terrorist threats at Heathrow airport also occurred under Clarke’s watch. Click Here for Full Blotter Coverage. Clarke’s efforts against terror were praised by his colleagues today. "Peter Clarke is a dedicated public servant, often working behind the scenes, who made an immense contribution to protecting the public and in doing so has undoubtedly saved lives," said Len Duvall, chair of the Metropolitan Police Authority. "Peter Clarke has performed outstandingly. His contribution to the fight against terrorism has been truly significant,” said Commissioner Sir Ian Blair. Clarke is retiring in order to pursue a range of new appointments and projects, according to the Metropolitan Police Authority. His successor has not yet been named. Do you have a tip for Brian Ross and the Investigative Team?