DNA database of UK dogs could help police collar criminals

Experts working on database that could identify particular breeds involved in crimes, or rule out canine suspects

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.