Final answer:
The photograph described is a close-up photograph of the body, dropped knife, and bloody footprints.
Step-by-step explanation:
The photograph described in the question is a close-up photograph. A close-up photograph focuses on a specific object or detail, providing a high level of detail and clarity. In this case, the investigator took a close-up photograph of the body, the dropped knife, and the bloody footprints.
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