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.
More top news
Stuart Langford targeted vulnerable young boys, offering them money and gifts in order to control and sexually abuse them.
Four prison inmates have been charged in connection with last month's major outbreak of disorder at Birmingham's Winson Green jail.
Influential black figures have joined forces to speak out about a deadly disease that sees black men twice at risk compared to white men.