Which of the following statements reflects an example of a source level proposition addressed by evidence?

The selected statement accurately represents a source level proposition because it directly addresses the relationship between a specific piece of evidence (the semen at the crime scene) and an individual (the defendant). In forensic analysis, determining the source of evidence is crucial, as it can connect the suspect to the crime or confirm their absence from the scene. By establishing whether the defendant is or is not the source of the semen, this statement provides critical information about their possible involvement in the crime.

The other statements, while they may pertain to the case, do not focus specifically on identifying evidence sources. For example, the first statement makes a broad assertion about guilt without referencing specific evidence. The third statement discusses the relationship between the victim and suspect but lacks specificity about physical evidence. The fourth statement simply comments on the timing of the crime without tying it directly to a source of evidence. Therefore, the chosen statement stands out as the one that effectively illustrates a source level proposition linked to tangible forensic evidence.