Police work unsocial hours

It was fascinating watching C4 news yesterday evening to see the director and Labour luvvy peer David Puttnam being rolled out to attack the police tactics of theatrics. He should leave the police to do policing, and he can get on directing films.
As to the charge that arresting someone pre-dawn was just theatrical, my understanding is that if you want to question someone over perverting the course of justice, the last thing you do is make an appointment with them to provide plenty of notice and time to carry out more deleting or shredding...