When must the facts giving rise to the investigatory stop be known?

When must the facts giving rise to the investigatory stop be known?

• A. After the stop
• B. Prior to the stop
• C. During the stop
• D. It doesn't matter

Answer: (B)

The key idea is that an investigatory stop must be based on reasonable suspicion that exists before you detain someone. You need specific, articulable facts at the moment the stop begins—things you can point to and explain that, taken with rational inferences, show criminal activity is afoot. If those facts only come to light after you have already stopped the person, the initial detention isn’t supported, because you can’t justify the stop with information you didn’t have at inception. You are allowed to gather more information and observe additional facts during the stop, and those later findings can influence how you proceed (for example, whether you continue the detention or escalate based on new reasonable-suspicion cues), but they can’t retroactively validate the initial stop. This standard, rooted in the Terry framework, centers on acting on preexisting, articulable facts rather than hindsight.

The key idea is that an investigatory stop must be based on reasonable suspicion that exists before you detain someone. You need specific, articulable facts at the moment the stop begins—things you can point to and explain that, taken with rational inferences, show criminal activity is afoot. If those facts only come to light after you have already stopped the person, the initial detention isn’t supported, because you can’t justify the stop with information you didn’t have at inception. You are allowed to gather more information and observe additional facts during the stop, and those later findings can influence how you proceed (for example, whether you continue the detention or escalate based on new reasonable-suspicion cues), but they can’t retroactively validate the initial stop. This standard, rooted in the Terry framework, centers on acting on preexisting, articulable facts rather than hindsight.