Final answer:
The police practice of interrogating individuals without notifying them of their right to counsel and protection against self-incrimination violates the Fifth Amendment.
Step-by-step explanation:
Yes, the police practice of interrogating individuals without notifying them of their right to counsel and their protection against self-incrimination violates the Fifth Amendment. The Fifth Amendment of the United States Constitution guarantees individuals the right to remain silent and the right to legal representation. When a defendant is not informed of these rights during interrogation, any statements or admissions made may not be considered voluntary or admissible in court.