Do Blackpool Police need to have their sirens blazing at four in the morning?

While I realise the police, on occasions, have to use their sirens to get to an incident in heavy traffic, I fail to understand why at 4am this is necessary, when roads are traffic free.

Friday, 16th November 2018, 5:21 pm
Updated Friday, 16th November 2018, 5:29 pm