"the guy is stopped because he's black, average size and wears a knitted hat during the winter."
Because the description of the suspect is "black, average size, and wears a knit cap." Indeed the description could have been more complete. Whomever interviewed the victim might have botched it. Maybe the woman was completely wrong. Maybe the communication for a BOLO was still incomplete.
But that's the description they had and that's the description they went on. These cops could have been less intimidating, but with the information they had, they still had to check this guy out.
Because the description of the suspect is "black, average size, and wears a knit cap." Indeed the description could have been more complete. Whomever interviewed the victim might have botched it. Maybe the woman was completely wrong. Maybe the communication for a BOLO was still incomplete.
But that's the description they had and that's the description they went on. These cops could have been less intimidating, but with the information they had, they still had to check this guy out.