The scenes inside the police station which is shown from the outside as being Paddington Green Police Station is actually a BT building across the street from the real police station called Burne House.
On 4th October 2018 ITV announced that it had commissioned a third, eight episode series of the show to be released in 2019. It was available from Netflix, but not for UK members, finally airing in the UK on ITV in 2021.
Co-Creator and writer Hans Rosenfeldt has written/co-written every episode of the hit Swedish/Danish show The Bridge, which is also the base for the Anglo/French Sky/Studio Canal show The Tunnel.
The name Marcella is pronounced "mar-chella" in this series, using the Italian pronunciation.
The bakery scenes were filmed at Healthy Eaters in Brixton, London.