Teenager ‘forensically-linked to assault’ after member of staff spat at over ticket dispute at Preston railway station

A member of staff was punched in the face and spat on in a dispute over a lack of a train ticket in June.

A suspect was forensically-linked to the assault following an investigation and a warrant was issued for his arrest.

A 17-year-old man was subsequently arrested on Friday (December 16).

Spit kits allow staff to take saliva samples and protect them from contamination before sending them for forensic analysis