A medical man can determine if a victim was killed where found or brought there by analyzing the blood pool.
This episode is a chapter reading from Hans Gross's 19th-century forensic handbook, detailing meticulous procedures for documenting, sketching, and physically preserving traces of blood at a crime scene. It provides step-by-step instructions for investigators, using a hypothetical murder room as an example to explain methods for different surfaces like wood, walls, and earth.

As heard by us

Blood is treated as evidence only after it is placed, oriented, and preserved with exacting care.

Hans Gross keeps blood evidence in a strict order: first the wider locality, then the stains themselves. He is careful about placement, asking when a mark belongs on the main sketch, when a second sketch is better, and why even a small piece of wood should have its cardinal…

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Why you'd press play

Press play if you want blood evidence handled like measurement, not melodrama, on the page.

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