We Can Now Tell a Person’s Age Range From Crime Scene Blood

A new method can quickly but accurately narrow down whether someone is an adult or a juvenile based on fluids left behind.

There might be a way to help nail down a crime suspect in old blood.

Chemists at the University at Albany, SUNY, have described a new method for quickly but accurately determining a person’s age range based only on a blood sample. The test could one day be used to help narrow down suspects in a crime scene investigation as easily as getting results from a glucose or pregnancy test.

“I hope it will change [and] accelerate the investigation, so you can know right away what is happening,” says Jan Halámek, co-author of the paper, which was published in May in Analytical Chemistry.

Traditional DNA analysis can take up to 72 hours and carries no reliable information about a person’s

Unlock this story for free

Want the full story? Sign up to keep reading and unlock hundreds of Nat Geo articles for free.
Already have an account?
SIGN IN

Read This Next

What bacteria lurk in your city? Consult the bees.
Is melatonin giving you nightmares?
Why are these orcas killing sharks and removing their livers?

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet