Cop shows often depict forensics experts combing the scene of a crime for traces of DNA. Working out which fragment comes from which person can be difficult. Inferences can also be made from a person's DNA material about his or her appearance.
Vietnamese police have taken hair and blood samples from potential relatives of the victims found in the back of a lorry near London last week. Catholic churches held candle-lit prayers in northern Vietnam.
On DW's Conflict Zone, Saudi Minister of State Adel al-Jubeir says his country is paying "a great price" over the murder of Jamal Khashoggi. Human rights groups continue to condemn its dire treatment of activists.
Police in Germany may soon be able to use DNA to build a more detailed picture of wanted fugitives. Under a new proposed law, authorities could be allowed to identify a suspect's age as well as skin color.
Police in Australia say DNA testing has identified the remains of missing French backpacker Erwan Ferrieux. Fears were raised after his rental car was found abandoned near a popular surf beach in February.
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