This has the advantage of showing the suspect in different profiles. But there have also been accusations that in-person lineups may be biased, if they present the suspect with persons who are not sufficiently 'like' the accused. Also, the use of double-blind presentations, where the officers conducting the lineup do no know who the suspect is, might be advisable to dilute the potential for biased or swayed eyewitness identification. Although in-person lineups are likely to be more accurate because they will not contain the possibility of 'bad' photographs swaying the witness, which is especially problematic if the photo line-up is of 'mug shots,' 'live' lineups also have more of a potential for bias by the body language of the officer conducting the investigation, thus this must be guarded against.

Question

Discuss the protections afforded by the Fourth Amendment and give an example of how investigators may constitutionally gather evidence and...
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