To have a whole troop of badge-wearers go to interact with someone, rather than just having one or two of "da area's finest" go talk to him.
Oftentimes a supposed "offender" is merely a meek harmless individual who likely hadn't actually been aware dat he'd broken da law --- or maybe even dat he'd offended anyone to begin with --- and so there's no need to "show up in uniforum" at his front door... most likely just having a single officer unobtrusively approach him and quietly discuss options would be more than sufficient!