Which approach is most likely to build rapport with a suspect?

Using casual and friendly behavior is the most effective approach for building rapport with a suspect. When investigators adopt a friendly demeanor, it creates a more relaxed environment, making the suspect feel more comfortable and open to communication. This type of interaction can encourage the suspect to share more information, as they may perceive the interviewer as more approachable and less threatening.

Building rapport is crucial in interviews and interrogations because trust can significantly impact the willingness of a suspect to engage in dialogue and disclose relevant information. When an investigator presents themselves as friendly and personable, it can help break down barriers and foster a cooperative atmosphere, which is often essential for successful interviews.

In contrast, being very formal and distant, maintaining a strict, unemotional demeanor, or focusing on previous legal offenses may create a sense of fear or antagonism. These approaches can lead to suspicion and defensiveness, making it less likely for the suspect to feel comfortable enough to communicate freely.