What combination makes an anonymous tip potentially enough to establish reasonable suspicion?

• A. An anonymity of tip alone is sufficient
• B. The tip must be from a named informant
• C. Sufficient predictive information plus corroboration by independent observations
• D. The tip must include an immediate emergency

Answer: (C)

Reasonable suspicion comes from the totality of circumstances, not a single clue. An anonymous tip by itself is usually not enough because its reliability is uncertain. But when the tip provides predictive information—details about what will happen or what a person will do—and officers can independently observe and verify those details, the tip becomes credible. That independent corroboration shows the informant’s information is more reliable, which can justify a brief investigative stop to confirm or dispel concerns. For example, if the tip says a person in a red hoodie will be near a certain storefront at a specific time, and officers see someone matching that description in that area behaving in a way that aligns with the tip, this combination can establish reasonable suspicion. The other scenarios—anonymous tip alone, a named informant, or an immediate emergency without corroboration—do not meet the standard on their own.