Who is the individual trying to elicit a confession or admission from a suspect during an interrogation?

The role of the individual trying to elicit a confession or admission during an interrogation is best attributed to an interrogator. An interrogator is specifically trained and skilled in techniques that aim to obtain information from a suspect, including drawing out confessions. This process involves the use of various psychological strategies designed to encourage the suspect to reveal truths about their involvement or actions related to an investigation.

In contrast, a mediator typically facilitates discussions and negotiations between parties to reach an agreement and does not engage in sessions aimed at obtaining confessions. An investigator focuses more broadly on gathering evidence and information through various means, including interviews and the examination of physical evidence, rather than the focused effort of extracting a confession. A witness, on the other hand, is an individual who has firsthand knowledge of the events relevant to a case and does not conduct interrogations. Thus, the designation of interrogator aligns most closely with the action of eliciting confessions during an interrogation setting.