What is the central idea of this paragraph ?
dna “fingerprinting” is fairly common in crime‐solving today, but it is a relatively recent technology. it wasn’t until
the 1980’s that scientists realized that they could see differences in people’s dna, but in 1987 the first criminal was
caught using dna evidence, and the landscape of criminal justice was forever changed. today, the innocence project,
a non‐profit organization in new york, uses dna evidence to exonerate people of crimes of which they have been wrongly
convicted. but dna identification isn’t just used to solve crimes. it has successfully reunited family members who were separated
after natural disasters, and has to determine people’s ethnic heritage. dna can also be used to identify the bodies of those
who have died in accidents when there is no other means of identification available.