Operation Kratos

Operation Kratos referred to tactics developed by London's Metropolitan Police Service for dealing with suspected suicide bombers, most notably firing shots to the head without warning. The tactics were developed shortly after the 11 September 2001 attacks, based in part on consultation with Israeli and Sri Lankan law enforcement agencies on how to deal with suicide bombers. Little was revealed about these tactics until after the mistaken shooting of Jean Charles de Menezes on 22 July 2005, in the wake of the 7 July 2005 London bombings. The term is no longer used by the Metropolitan Police, although similar tactics remain in force.

After the 11 September 2001 attacks, many police agencies worldwide began to seriously consider the possibility of suicide attacks in their own home countries and cities. A Metropolitan Police team led by Barbara Wilding, Deputy Assistant Commissioner Specialist Operations, visited Israel, Sri Lanka and Russia, to learn from their experience of suicide attacks. They also consulted with UK government scientists.

Key findings were:

New tactics were developed in the first half of 2002 by Wilding and Sir David Veness, Assistant Commissioner Specialist Operations. These were designated Operation Kratos, named after the Greek demi-god Kratos (Ancient Greek: κράτος "strength or power"). Work on the policy was taken over by the Terrorism and Allied Matters Committee of the Association of Chief Police Officers (ACPO) in January 2003. A paper entitled Operation Kratos People was circulated among UK police forces, and Operation Kratos became national policy.

...
Wikipedia