Which of the following represents a situation where reasonable suspicion might not be met?

The situation of a person standing alone in a parking lot late at night may not meet the threshold of reasonable suspicion needed for an investigative stop or further questioning. Reasonable suspicion requires specific and articulable facts that lead an officer to believe that criminal activity may be occurring. In this instance, while the context of being alone in a parking lot at night might raise concerns, it does not automatically imply criminal behavior without additional indicators or circumstances that would suggest such conduct.

In contrast, the other options present scenarios that, based on context or behavior, more clearly indicate potential criminal activity or involvement. Witnesses reporting a robbery in progress or an officer observing someone speeding provides clear grounds for reasonable suspicion due to the immediate nature of the claims or observations. Similarly, a person talking loudly to themselves in certain contexts could prompt suspicion of potential mental health issues or disruptive behavior, thereby justifying further investigation.