Chicago Police Department (CPD) Practice Exam 2025 - Free CPD Practice Questions and Study Guide

Recording the addresses checked and the responses received during a canvass for witnesses is critical for several reasons. This process involves reaching out to potential witnesses to gather information related to an incident or investigation. By documenting where you have been and what responses you received, you create a clear account of the efforts made to gather evidence and witness testimony.

This documentation serves multiple purposes. First, it ensures that all areas have been thoroughly canvassed, helping to avoid missing potential witnesses who could provide crucial information. Second, it allows investigators to track which leads have been followed and the nature of the responses—whether they were cooperative, unhelpful, or indicated the presence of other witnesses. This record can also be utilized in future investigations or court proceedings to demonstrate the thoroughness of the investigation and the diligence of the officers involved.

In contrast, recording only the names of the witnesses would omit essential context regarding the investigative process, and feedback from the investigating department, while valuable, is not directly relevant to the immediate efforts of canvassing. Similarly, public sentiment about the investigation, while indicative of community engagement, does not provide concrete details necessary for documenting witness canvassing outcomes.