I remember a podcast (I think it was Every Little Thing) where someone described being a police sketch artist and it very much involved a lot of question asking

I remember a podcast (I think it was Every Little Thing) where someone described being a police sketch artist and it very much involved a lot of question asking, a lot of experience with identifying specific traits that stand out, and refining it over time. Draw a nose, was the bridge wider or thiner? With a lot of experience they seem to be able to get the "right" details close-enough that it can identify say, a large handful of people for whom those that might report them can feel more confident in say, calling the FBI before reporting their uncle. This casts a wider net than say, directly identifying them, but it helps isolate the possible suspects well enough to be worth doing when you've got nothing else.