I'm trying to find the author/ title of the following shortstory:
It's night shift at a big city police station, where an officer monitors the "DeAngelis board." The board is a map of the city with little lights that indicate duration and intensity of human emotions. The cops use this to help prevent crimes.

I must've read this 25-30 years ago.

These answers came by way of rec.arts.books.childrens at google groups:

Sea Wasp wrote:
Pulling a blank on the title, but if we're thinking of the same story it's the one where

spoilers

there's one light that glows very dimly at first and slowly builds up, as a psychopath slowly stalks his prey (a little girl, I think) and only just barely gets caught in time.

Beth Friedman wrote:
Argh. Yes, that's the story. I can see the anthology it's in, but not clearly enough. It looks like one of the Merril best-of-the-year, but it's not. I think the title might be The ????? Makers, but not necessarily. And I think it's one of the early stories in the anthology.
But I remember the story very clearly.

Sea Wasp wrote:
Got it. It's "The Circuit Riders" by R.C. Fitzpatrick.
Piggybacking on my post, it appeared in Analog originally, and was anthologized in :
1. The 8th Annual of the Year's Best S-F, Judith Merril, 1963, Simon & Schuster, $4.50, hc
2. Analog 2, John W. Campbell, Jr., 1964, Doubleday, hc
3. Analog Anthology, John W. Campbell, Jr., 1965, Dobson, hc
One of them is, as you said, a Merril anthology. I think you got the title confused with The Future Makers, possibly.
--
Sea Wasp
/^\
;;;

Thank you....I am amazed how quickly you provided the complete answer.

Ya gotta know the right sources, hehe.

I am consistently in awe of Dandy's resourcefulness.