Final answer:
The police practice of interrogating individuals without informing them of their rights to counsel and protection against self-incrimination may violate the Fifth Amendment.
Step-by-step explanation:
The police practice of interrogating individuals without notifying them of their right to counsel and their protection against self-incrimination may violate the Fifth Amendment, depending on the circumstances. The Fifth Amendment protects individuals from being compelled to incriminate themselves and guarantees the right to counsel. Failure to inform individuals of these rights during police interrogations may render any subsequent statements or evidence obtained inadmissible in court.