The first thing I want to know is how much of a threat it is. It is in an urban area of a mid-size city. That bear could charge at any time as it was scared. It could break into a house for food, which is increasingly common out in New Jersey. Black Bears are dangerous. So are bucks in rutting season.
However, there was no reports of those things happening. Unless the bear is an imminate threat, I think they should have have called the DNR, and release the bear up near Baldwin where there are less people and more land to roam.
There are occasional black bear sightings in the urban area where I live.
Generally, the cops cordon off the area, get out their rifles in case of trouble and call the DNR. The DNR comes, tranquilizes the animal, tags it and moves it. If it returns to the city, they will put it down.
They are almost always dealing with young bears looking for new territory.
If the bear was a threat to people or was injured, I have no problem putting it down.