English version

mistaken identity

From Longman Dictionary of Contemporary Englishmistaken identitymisˌtaken iˈdentity noun [uncountable]  WRONG/INCORRECTa situation in which someone believes that they have seen a particular person when in fact it was someone else – used especially in relation to crimes The police arrested someone, but it turned out to be a case of mistaken identity.
Examples from the Corpus
mistaken identityAnyway, the upshot is an awkward dinner party seasoned with deception and mistaken identity.He knew it was a case of mistaken identity when they urged him to bare all.One theory was that the attack on the nanny was a case of mistaken identity.Confirm the candidate is the one you are expecting - you do not want any cases of mistaken identity.case of mistaken identityHe knew it was a case of mistaken identity when they urged him to bare all.One theory was that the attack on the nanny was a case of mistaken identity.Confirm the candidate is the one you are expecting - you do not want any cases of mistaken identity.
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