Тру канон.
Mycroft notices that a certain police officer, one Sergeant Nicholas Angel, is so good at his job that he's single handily brought down London's crime rate. Of course, this means that there are less cases for Sherlock to work on, so Mycroft pulls some strings and gets Angel transferred to the quiet village of Sandford.

(Bonus points if Mycroft knows exactly what's going on in Sandford and sends Nicolas there as a way to kill two birds with one stone.) (с)