Review: Witnesses (S1 E5/6), Wednesday 19th August, Channel 4

If there’s one thing we know about this excellent French procedural is that it doesn’t muck about. Let’s face it, with only six episodes in the series it hasn’t got time to muck about, but still. Last week we were plunged into a scenario where Paul Maisonneuve – that flinty old detective with more skeletons…