To conduct an effective interview, which of the following should NOT be done?

To conduct an effective interview, using leading questions is not advisable because these questions can influence or bias the witness’s responses. Leading questions suggest a particular answer or contain the answer within the question itself, which can compromise the integrity of the information being gathered. The goal of an effective interview is to collect accurate and unbiased data, and leading questions can cloud the witness's recollection and potentially skew the findings.

On the other hand, avoiding interruptions is crucial as it allows witnesses to express themselves freely and fully, thus yielding more comprehensive accounts of events. Asking open-ended questions encourages witnesses to provide detailed responses rather than simple yes or no answers, which enhances the depth of the information collected. Additionally, reminding witnesses of the importance of providing all details fosters a thorough recollection and demonstrates the value of their contributions to the investigation, aiding in the overall accuracy and completeness of the gathered information.