Which is NOT a method for developing reasonable suspicion?

The correct choice, which indicates that "public opinion" is not a method for developing reasonable suspicion, is appropriate because reasonable suspicion is based primarily on specific, objective facts or observations made by law enforcement officers.

Reasonable suspicion involves a lower standard than probable cause and can be established through direct experiences, such as an officer's observations, citizen reports, or information from other officers. These sources provide credible, actionable intelligence that can lead to a higher likelihood of criminal activity being present. In contrast, public opinion does not provide concrete or specific facts; it tends to be more subjective and general, lacking the necessary detail and reliability that law enforcement requires to establish reasonable suspicion. Consequently, while citizen reports can help in forming a reasonable suspicion when they convey specific information, public opinion is too vague and doesn't meet the threshold necessary for the standard of suspicion needed to justify stops or investigative actions.