A revolutionary genetic editing technique designed to repair faulty DNA could be used by criminals to disappear from forensic databases, leading experts have said.
It is hoped the Crispr system, which acts like molecular scissors to snip away damaged genes and replace them with healthy code, will eventually fix diseases such as sickle cell anaemia, cystic fibrosis and muscular dystrophy.
However, Professor George Church, of Harvard University, who pioneered the use of the Crispr technique, said it could also be used by criminals to disappear from forensic databases or evade detection.
Crispr kits can be bought online for around £150 ($288), and last year Josiah Zayner, a former Nasa biochemist, injected himself with a genetic cocktail during a live-stream to increase his muscle mass.
Asked if Crispr could alter DNA to the extent it would make forensic evidence unusable, Church said: "We could do that today, easily. A lot of it is done by blood and even if you just get a stem cell transplant you have a new identity. Crispr actually would be easier than a stem cell transplant because (a transplant) would have to be done sterilely and you would need to irradiate yourself to get rid of the old ones."
