I thought Moot liked to take others from behind....
North can be behind me anytime he likes.
A few years ago I watched
Gordon Behind Bars, where Gordon Ramsay went into a prison and tried to teach prisoners how to cook so they could sell to the public to make money for the prison supporting them. What struck me were the prisoners themselves...even if they were in for non-violent offenses, prison life had changed them...their lives were so regimented and isolated that the smallest dispute or change would make them irritable and liable to snap. I mean yeah they're people, and most of them had sympathetic stories about how they came to end up in the situation they were in, but they weren't like people you'd walk up to on the street. They were people who had essentially been caged for a decent portion of their life, and it had an impact on them mentally that showed.
It's telling that five of the original twelve prisoners selected for the chef program were removed before the end of the series (which filmed over six months).
And I don't think it was a story cooked up for the show either...besides the fact that Gordon's British shows are generally much better and "realer" than his American shows, statistics show that people who were formerly prisoners are much more likely to end up back in prison, largely because they don't know how to adapt to life outside so they return to a life of crime.
So maybe looking at them as less than human makes it easier to deal with them, so you don't risk letting your guard down or developing dangerous emotional attachments, but either way I can imagine being a guard in that sort of setting would be mentally tough, and I know mentally it's so far removed from who I am as a person and how I naturally interact with people I couldn't do it. Of course, I'm hardly an expert at law enforcement, especially compared to North, but that's just my views on the whole thing.