What is a common reason for an investigation to be deemed invalid?

The basis for an investigation being deemed invalid often revolves around the identification of the suspect. An investigation requires a clear link to the person being investigated because without properly identifying the suspect, the investigative process lacks focus and purpose. If the suspect cannot be effectively identified, it raises concerns about the integrity of the entire investigation. This situation can lead to challenges in proving the case, as knowing who is being accused is fundamental to gathering further evidence and building a case.

While maintaining evidence, the presence of witness testimony, and the nature of financial transactions can play significant roles in the robustness of an investigation, the identification of the suspect is crucial from the outset. Without establishing who the suspect is, investigators cannot proceed effectively with gathering additional evidence, interrogating witnesses, or substantiating claims against that individual. Therefore, the failure in effective identification directly undermines the validity of the overall investigation.