identification parade
From Longman Dictionary of Contemporary Englishidentification paradeiˌdentifiˈcation paˌrade (also identity parade) noun [countable] British English a process in which someone who has seen a crime take place looks at a group of people to see if they can recognize the criminal SYN line-up American EnglishExamples from the Corpusidentification parade• They were going to have an identification parade.• Later a hastily assembled identification parade of three sat before me.