Final answer:
Interrogating individuals without informing them of their right to counsel and protection against self-incrimination does raise concerns with respect to the Fifth Amendment, which is the basis for the Miranda rights established by the Supreme Court in Miranda v. Arizona.
Step-by-step explanation:
The practice of police interrogating individuals without informing them of their right to counsel and their protection against self-incrimination does raise concerns regarding the violation of the Fifth Amendment. The Fifth Amendment provides protection against self-incrimination and guarantees the right to legal counsel. Not being informed of these rights could lead to a situation where individuals might not be aware that they can refuse to answer questions or request an attorney during interrogation. This is the foundation for the Miranda rights, which stem from the landmark Supreme Court decision Miranda v. Arizona (1966). In this case, the Court held that suspects must be advised of their rights before being questioned by law enforcement, which includes the right to remain silent and the right to an attorney.