As far as I know, the directive mainly applies to officers who are sent back in time and/or given the opportunity to change established history. I don’t think it would prevent someone from making an arrest in their “proper” time.
At most, it might limit their ability to interrogate the prisoner, if they can verify that the intruder is from the future and possesses knowledge that the contemporary officers can’t have.
I think you might be able to draw a parallel with long-running serials like comic books, or even Star Trek itself. They tend to revisit old themes and revolve around a certain status quo.
They tend not to involve multigenerational obedience to an authoritarian regime, though…