A Midlands company has helped develop a gun which fires pellets filled with artificial DNA from a distance of up to 40 metres.
The bullets leave a unique tell-tale mark on the suspect which is only visible under ultraviolet light.
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Fine and dry, with warm sunny spells on Wednesday.
A dry and fine day. Some thundery rain possible later.
An appeal is being made for pet owners to bring their dogs to a special canine blood bank to help save a life.