The idea with a lineup is that you have some other sort of evidence, not based on how people look, and then have them identify the person
No, that's not the idea with lineups; if that was it, you could just show one photo of a single suspect and ask "Is that them?" Which, as you know, has tremendous problems with accuracy of identifications.
Yes, but that's why you use the line up. You don't just show them random people that look like what they described.
It's like, the suspect was a white guy with brown hair in a blue car, and then you get all the white guys with brown hair and blue cars that were in the area and present a line up of them with similar looking people but not having blue cars and being in the area.
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No, that's not the idea with lineups; if that was it, you could just show one photo of a single suspect and ask "Is that them?" Which, as you know, has tremendous problems with accuracy of identifications.
Yes, but that's why you use the line up. You don't just show them random people that look like what they described.
It's like, the suspect was a white guy with brown hair in a blue car, and then you get all the white guys with brown hair and blue cars that were in the area and present a line up of them with similar looking people but not having blue cars and being in the area.