In order to facilitate an investigation effectively, what should an investigator establish with witnesses and victims?

The correct choice emphasizes the importance of building rapport with witnesses and victims during an investigation. Rapport refers to a harmonious relationship where trust and understanding are established. When investigators create rapport, they make witnesses and victims feel more comfortable, which often leads to more open communication and the sharing of critical information relevant to the case.

Building rapport can also encourage individuals to disclose sensitive details that they may initially be reluctant to share. It fosters an environment where victims and witnesses feel valued and respected, making them more likely to cooperate throughout the investigative process. This connection is vital because a lack of rapport might result in individuals withholding details or feeling intimidated, thus hampering the investigation's efficacy.

In contrast, establishing authority may create a power dynamic that could lead to resistance or fear among witnesses or victims. Maintaining distance would likely inhibit open conversation and lead to mistrust. While making a connection is important, rapport specifically highlights the emotional and interpersonal aspects essential for effective communication in investigations.