He was questioned, and investigators found that his DNA matched samples from the two 2005 rapes.

And by matching distinctive samples, much as a detective matches up fingerprints, inspectors gain insights into the places they originated.

Some of the hairs were blond, and they matched samples taken from the head of the dead girl.

The plutonium matched samples you brought with you from the Russian Republic.

Detectives extracted DNA from Sela, which was found to match samples given by nine of his victims.

Also, we found traces of unburned hair that also matched samples from a comb found in Gorfmann's desk.

They match samples taken from Eddie.

The note matches other samples of her handwriting.

But suspicions were raised on their sixth inspection, when the samples they took of nuclear waste did not match samples of nuclear fuel.

Metallic samples from his clothes matched samples from the victims' clothing.