91色情片

Forensic clock calls time on crimes

A technique that measures how quickly genetic material breaks down could reveal when a person was present at a crime scene

Telling genuine art from fakes at a stroke

Crime scene DNA puts names in the frame

Guilt by association

Instant test for crime scene compounds

DNA duplication trick may lead to faster testing

Superglue gun could finger bomb suspects

Killer convicted thanks to relative’s DNA

Murder detectives must rethink maggot theory

Bite-mark evidence can leave false impression

Courts assume tooth marks left on a victim can be matched to a suspect's bite, but lawyers and scientists say the technique may be flawed

Gold fingerprint to foil forgers

Close examination

Technology

Ready for your close-up?

Humans

Could it be you?