What must an officer believe to legally conduct a stop and frisk?

• A. That the person is a suspect of a crime
• B. That the person is armed and/or dangerous
• C. That the person is fleeing a crime scene
• D. That the person has been previously arrested

Answer: (B)

For an officer to legally conduct a stop and frisk, they must have a reasonable belief that the person they are stopping is armed and/or dangerous. This standard is established under the legal precedent set by the case Terry v. Ohio, which allows officers to stop a person for brief questioning if they have reasonable suspicion that the person is involved in criminal activity. Furthermore, if the officer has specific concerns for their safety or the safety of others, they are permitted to conduct a limited pat-down of the person's outer clothing to check for weapons.

This belief does not necessarily require the officer to have definitive proof of a crime or to suspect that the person is fleeing from a crime scene. The focus is primarily on the officer's perception of immediate danger and the need to ensure safety. Other potential options may include situations where the individual is known to be involved in criminal activity or has a prior record, but these alone do not justify a stop and frisk without the additional concern for potential danger. Hence, the requirement centers on the perception of being armed and dangerous, making it the correct aspect that must be present for constitutional justification of the stop and frisk.