Grizzled police officers of the old school should probably avoid Channel 4’s Night Coppers for reasons of blood pressure. Like most documentary series with close access to the police, this one paints them in a light so favourable as to be almost comically sycophantic. The trouble for those grizzled types is that – the times being as they are – what’s now considered favourable is to make the rozzers who patrol Brighton after dark all seem like that pathologically liberal Dutch cop played by Paul Whitehouse in the late 1990s.