What is crucial for visual examination of the body?

The key aspect of conducting a visual examination of the body lies in the victim's height and weight. This information plays a critical role in identifying the victim and understanding the physical context of the investigation. For instance, knowing the victim's height and weight can assist investigators in reconstructing the circumstances surrounding the death, such as the likelihood of specific injuries or the use of physical force.

Furthermore, physical characteristics are essential for forensic comparisons, such as matching skeletal remains to a known individual or determining how the condition of the body correlates to the reported circumstances before death. Thus, accurate height and weight records contribute to clarity in forensic identification and the overall investigative process. Other options, while they may provide context about the victim's life or background, do not directly impact the technical aspects of visual examination in a forensic context.