"Peter Clarke served for over 30 years in the Metropolitan Police, commanded the Brixton Division and the Royalty and Diplomatic Protection Department, and was Head of the Anti-Terrorist Branch for over 6 years. He retired from the position of Assistant Commissioner Specialist Operations in 2008. Since then he has advised and consulted in the public and private sectors, has been a Fellow of New York University Center on Law and Security, a member of the UK National Security Forum, a member of the Board of the UK Serious Organised Crime Agency, and a trustee of Crimestoppers." 
- Team, Greenmantle ADS
Resources and articles
- Greenmantle ADS Peter Clarke, organizational web page, accessed November 7, 2013.