A decent story, but let down by serious failings that reduce its 'star rating' considerably. It needs a complete suspension of the viewer's logic to imagine that the most inexperienced detective would instantly become the 'king-pin' among her more senior and worldly-wise colleagues. Far more likely that her presence and attitude would be greatly resented.
Some good acting, but with the notable exception of Cirain Hinds, who is over-acting to a ridiculous degree. His character is loud and unpleasant, and often perfectly ludicrous. And the suggestion that there would be a simmering of sexual attraction between the young DC and Hinds as the DCI is ridiculous.
Finally, a small but significant point. However tempting it is for lefty writers and producers to denigrate all things 'Tory', it is a mistake to involve a reporter from the 'Daily Telegraph'. Of all the newspapers least likely to ignore police advice on a 'news blackout' the 'Telegraph' would top the list; it is no tabloid and employs real professionals.