“The flights are a major source of pollution and appear to disproportionately affect some communities of color, the audit said.”
That statement certainly sets the tone of the audit. I suspect relative to all sources of emissions in the LA area, the contribution of 17 helicopters is trivial (trivial even relative to just LAX traffic).
My locality PD operates a pair of B429s and I’m happy to have them as a taxpayer. Yes, they are noisy (one flew over at 700 ft as I type this), but that’s a reasonable inconvenience for effective PD surveillance.