Which of the following would be considered an informer?

An informer is typically defined as an individual who provides information to law enforcement, often about criminal activity or violations of the law. In this context, the second option is correct because it encompasses a broad range of individuals who share information with police officers, regardless of their background or relationship to the case being investigated.

This definition includes anyone who voluntarily discloses pertinent information that may assist law enforcement in their duties, such as tips about criminal behavior, leads on suspects, or evidence related to ongoing investigations. It captures the essence of what an informer does and acknowledges that informers can come from any walk of life, not strictly from the criminal milieu.

The other choices do not align with the definition of an informer. A police officer is a law enforcement official who conducts investigations rather than providing information as a third party. Members of a jury have a specific role in the judicial process and are not considered informers since their duty is to deliberate on the evidence presented during a trial. An eyewitness to a crime may provide crucial testimony but does not qualify as an informer in the general sense since they are typically called to testify in court rather than provide information to law enforcement outside of that context.