Preserving the frozen moment
The invisible world of trace evidence
Decoding the biological blueprint
Toolmarks, digital trails, and ballistics
mankai Explore the science of blood spatter and learn how surface tension shapes a falling droplet when it hits a flat surface.
Trace Evidence: Sir Francis Galton calculated the mathematical odds of two people sharing identical fingerprints to be roughly 1 in 64 billion.
renaissanceman Investigators use everyday cyanoacrylate glue to make invisible fingerprints permanently visible on hard surfaces.
What math discipline do forensic scientists use to find the origin of blood spatter?
According to Sir Francis Galton's 1892 calculations, what are the odds of two people sharing identical fingerprints?
What shape does a blood drop make when falling straight down at a 90-degree angle?
What substance in sweat does superglue vapor react with to reveal fingerprints?
renaissanceman Match microscopic clues to discover how crime scene investigators crack tough cases.
renaissanceman The shape and distribution of blood drops tell the story of the physical forces at play.
What specific part of a fingerprint do computer systems compare to find a match?
What household adhesive is heated by forensic scientists to reveal latent fingerprints?
Which famous 1982 Atlanta court case relied heavily on rare yellowish-green carpet fibers?
renaissanceman Trace Evidence
Every single touch will leave a tiny piece behind, A microscopic thread that science is designed to find.
Superglue fuming: Heated superglue fumes stick to fingerprint sweat, turning invisible prints into durable, white plastic shapes.
Minute physical material, such as hair or fiber, that is transferred between people or objects. In 1910, Edmond Locard founded the Lyon police laboratory to analyze microscopic hairs, fibers, and dust.
