The deployment of police officers from non-mining communities was a deliberate tactic to ensure that officers, many of whom were young men with no dependants, could not easily feel sympathy with the men on the picket lines and their families at home.
The massive drive in police recruitment from 1979 that happened in preparation for the conflict with the NUM in 1984 saw many of those young men plucked from dead-end jobs to a career with excellent pay and prospects.
Most didn't stop to think how lucky they were and how things would have been different if they had been born to a working class family in Yorkshire rather than Essex.
It's nothing new. It happened during the Libyan uprising when army units from one side of that vast country were shipped in to quell protesters from the other side. It's always happened all over the world when governments want to win a battle against the people they are supposed to be governing fairly.
And yes, I did mean 'shipped in.'
I don't particularly blame the police for some of the attitudes they displayed, often in the face of violence. But I do ask people to have a bit of imagination.
The government at the time used the police as a quasi-paramilitary organisation and lots of people didn't think then about how damaging that was to the image of the police and still don't think about it.