Full results from environmental swipe samples taken in June from the bombed site are due to be released within 3 weeks.

BBC: Shooting delays UN Syria inquiry

Analysis on worldwide DNA samples suggested the results were similar regardless of a person's geographic ancestry.

BBC: Forensic test can predict hair and eye colour from DNA

Twenty-eight local authorities across the UK will take a total of 224 samples, and results are due to be published in April.

BBC: Tesco