Question: 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, informally referred to as the Met, is the territorial police force responsible for law enforcement in Greater London, excluding the "square mile" of the City of London, which is the responsibility of which organization?
{'answer': 'City of London Police', 'supporting_facts': [['Operation Kratos', 0], ['Metropolitan Police Service', 0]]}