Final answer:
The use of a suspect's words in a lineup may violate the Fifth Amendment's privilege against self-incrimination and implicate Miranda rights, requiring that suspects are informed of their right to remain silent and have counsel present.
Step-by-step explanation:
The use of a suspect's words in a lineup may implicate the constitutional protection known as the privilege against self-incrimination. This protection is strongly associated with the Miranda rights, which stem from the landmark case Miranda v. Arizona.
In this decision, the Supreme Court held that prosecutors could not use statements from custodial interrogation unless procedural safeguards were used to secure the privilege against self-incrimination.
These safeguards include informing the suspect of their rights, such as the right to remain silent and the right to have counsel present during interrogations. Hence, using a suspect's words in a lineup without such safeguards could implicate their Fifth Amendment rights.