Which of the following is NOT typically a focus during the investigation of a robbery?

In the context of a robbery investigation, establishing a motive is generally considered less critical than the other options. While understanding a suspect's motive can provide valuable context, robbery is often an opportunistic crime driven by immediate gain rather than complex motivations. Therefore, investigators prioritize identifying the suspect, collecting witness reports, and preserving evidence, as these actions are essential for building a strong case against the perpetrator. Collecting witness reports helps in establishing timelines and corroborating details, while preserving evidence is crucial for forensic analysis and connecting the suspect to the crime scene. Thus, focusing on motive does not play as significant a role in the immediate investigation when compared to these other priorities.