Which constitutional principles shape police stops, searches, and arrests?

• A. They allow any stop with consent and have no restraints.
• B. They require a warrant for every interaction, even stop.
• C. They require reasonable suspicion or probable cause, protect against unreasonable searches, and prohibit coercive interrogation.
• D. They only apply during high-crime times.

Answer: (C)

The idea being tested is how constitutional protections limit police stops, searches, and arrests. Stops or detentions must be based on reasonable suspicion that criminal activity is afoot. If that stop leads to a search for weapons, the frisk must be justified by reasonable suspicion that the person is armed. For more invasive searches and for making an arrest, there must be probable cause, and in many cases a warrant is required, with limited exceptions. In addition, custodial interrogation must be conducted without coercion and with safeguards like the Miranda warnings to protect against self-incrimination. Together, these rules balance allowing enforcement with protecting individual rights.

So the best answer captures all of that: it requires reasonable suspicion or probable cause, protects against unreasonable searches, and prohibits coercive interrogation. The other options are too broad, too narrow, or ignore these protections entirely.