How did the police ever solve any crimes before CCTV? That was the question which sprang to mind watching the first episodes of two highly promising new crime dramas this week. It’s also the central question now facing the detective in one of them.

Part police officer, part career women, Rachel Carey in The Capture (BBC1, Tuesday) is being fast-tracked through the system to the traditional disapproval of her grizzled, old-school boss DCI Alex Boyd — imaginatively known as Boydy.