Barry is involved with a group of criminals who smuggle illegal items out of the country. Occasionally, he is summoned by the police to provide information about the people involved in the smuggling process with him, the items smuggled, and frequent routes used for smuggling. In this scenario, Barry is a(n) .

Confidential informant

Explanation:

Confidential informant is an individual engaged purposely in a crime group or a secret society solely to get information from the group to be used against them. Barry is performing the role of a confidential informant, as he joins the gang for operations and exposes information about them.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.