Clarke then spent a further 3 years as a Commander , heading the Protection Command between 1997 and 2000 , a role which placed him in charge of Royalty protection at the time of the death of Diana , Princess of Wales , followed by 2 years as deputy director of personnel from 2000 to 2002 . In June 2002 , Clarke became head of the Anti-terrorist Branch , later merged with Special Branch to form the Counter Terrorist Command , a role which put him in direct control of the investigation into the 7 July attacks on London and the failed bomb attempts of 21 July 2005
7 July attacks
7 July 2005 London bombings
Peter Clarke (police officer)