DNA database of UK dogs could help police collar criminals

In one case, DNA analysis cleared one owner’s dogs of a sheep attack. Photograph: Aris Oikonomou/AFP/Getty Images

From tracking criminals to sniffing out drugs, dogs have long helped police crack cases. Now experts are hoping a database of canine DNA could offer vital leads.

While hair, saliva and other canine material may be found at crime scenes, or on individuals connected to incidents, scientists say they are often not fully investigated.