The koji trackers of northern India are trained from infancy to chase criminals and can discern a thousand details from imperceptible footprint signs.
This chapter from Hans Gross's 19th-century forensic handbook explores the science and art of footprint analysis in criminal investigation. It covers observation techniques, preservation methods, and includes remarkable historical examples of Indian trackers who could follow footprints for hundreds of miles.

As heard by us

A patient manual on how small tracks become hard evidence.

The chapter treats footprints as evidence only when they are noticed, preserved, and handled with care. It stays close to ordinary details - the spacing of steps, the edge of a road, ash from a pipe, struck matches, a companion's return, and a turn toward an inn - and uses them…

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Why you'd press play

If you want a sober lesson in reading the ground, start here.

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