TRAIN operator ScotRail has banned the use of a controversial anti-loitering device – just months after one was introduced at Helensburgh Central station.

The company brought in the Mosquito device – which emits a loud alarm sound particularly sensitive to younger ears – in response to an escalation in incidents of anti-social behaviour, including attacks on the company's own workers.

But the firm now says that after a "thorough review" of the devices in place at Helensburgh Central and Hamilton Central stations, they will no longer be used.

ScotRail’s review concluded that given the low usage of the devices, and the lack of evidence to show the positive impact of the devices in isolation, they should be banned.

The device was introduced in Helensburgh alongside other measures such as security guards at stations, an increased British Transport Police presence at stations and on trains, and more Police Scotland patrols in the local areas.

A third Mosquito device is in place at Aberdeen station but has not been used since before 2015.

David Lister, the ScotRail Alliance's director of safety and sustainability, said: “The safety and security of our staff and customers remains our priority, and we continue to work with all agencies – including the British Transport Police, Police Scotland, trade unions, and local authorities – to tackle any anti-social behaviour at our stations. These devices were always only a small part of a much wider effort to tackle anti-social behaviour wherever it occurred.

“A small number of customers raised concerns about the use of these devices. We always listen very carefully to customer feedback.

"Following a thorough review of the use of mosquito anti-loitering devices, we have taken the decision to ban them from the three stations at which they are currently installed.”