THE METROPOLITAN Police has a very straightforward approach to murder investigations. Not for them the detective's gut instinct or the intricate logical deductions of the sleuth savant. No, what the Met likes to do is throw a shitload of manpower at the problem and run down every single possible lead until it is exhausted, the murderer is caught, or the senior investigating officer dies of old age. As a result, murder investigations are conducted not by quirky Detective Inspectors with drink/relationship/mental problems but a bunch of frighteningly ambitious Detective Constables in the first mad flush of their careers.