[Officer Fukuda... what a wild thing to hear. He takes Kim's hand and shakes it. He's got big hands (though pretty much on par for his size) but his grip isn't especially firm, not dead fish limp, just sort of passively gentle.]

I see! Then it's a pleasure to meet you as well, Mr. Kitsuragi. And I mean, I figure demons are going to have different ideas about how policing should work than us humans, but they brought us in here, so maybe that's the point? Since what they're doing now isn't working, I guess.

[He's just going to police however he wants, essentially, unless told otherwise.]
So I don't think your advice wouldn't be valueable at all.