In general, "trauma-informed policing" = CIT training.
My opinion on CIT is that it's too disease model, too much focus on disproven clinical opinions about what causes "mental illness." Although cops are one of the least concerning people to be bought into the disease model biochemical BS theory. Since cops aren't supposed to be interacting A LOT with people, having them not believe in recovery is not as damaging as a mental health provider that is clueless about recovery.
But also, CIT varies widely in the number of hours spent with actual recovery movement advocates (which in my opinion are the only people who know useful stuff about mental health). In Idaho they spend 20 of the 40 hours with peer advocates. In kansas City they only spend 1 of the 40 hours with peer advocates. So the quality of the training varies widely. Mostly as a function of the quality of the NAMI chapter in that region, which also vary quite widely.