Bus company Arriva is looking at the legality of carrying out DNA checks on saliva if passengers spit at its bus drivers, free newspaper Spits reports on Monday.

‘Spit kits’ have been used in Liverpool in England since 2005 and led to a sharp reduction in spitting incidents, the paper says.
Arriva has asked the public prosecution department for permission to carry the kits on its buses.
In March, regional transport group Veolia, which operates buses and trains in the south of the country, said it planned to give train conductors test tubes to collect saliva for DNA research if they are spat at.