Labour has been told Britain’s emergency alert system must not be used as a “nanny state megaphone” as consternation builds at the multi-million pound cost to the taxpayer. There is alarm it was most recently used to warn Britons about the dangers of igniting wildfires by using disposable barbecues or fireworks during the August heatwave.

The system, which makes mobile phones sound a siren and display a warning message, was devised under the last Conservative Government, which had said development costs would come to a maximum of ยฃ25.3million. Contracts were awarded to four mobile phone operators with a total value of nearly ยฃ16million.

A Reform UK spokesperson said emergency warnings โ€œshould be in place to keep the public safeโ€ but said the UK has โ€œan unreliable service that has been used to warn people about disposable barbecuesโ€.

Noting the โ€œsubstantial funding to deliver these alertsโ€, he spokesperson added: โ€œTaxpayers deserve better.โ€

William Yarwood of the Taxpayers’ Alliance predicted taxpayers would be โ€œbaffledโ€.

He said: โ€œEmergency alerts should be reserved for genuine crises, not turned into a nanny state megaphone for routine warningsโ€.

Mr Yarwood said ministers must โ€œprove this system is delivering value for money.โ€

The system was designed to alert Britons to major threats of life such as pandemics, severe weather, terrorism dangers, bomb disposal evacuations, wildfires and coal tip hazards.

The most recent warning has drawn strong criticism. Former Conservative minister Oliver Dowden, who launched the system, said last month he was โ€œsurprised at the decision to issue this nationwide alertโ€.

He said people should know that if they receive the alert it is a โ€œgenuine imminent emergencyโ€ and warned that if โ€œthat confidence is lost, people will simply ignore itโ€.

Campaigners have also warned that the alert across England and Wales put people at risk of domestic violence at risk by potentially revealing the location of a hidden phone to an abusers.

Women’s Aid warned last month that survivors of domestic abuse โ€œfrequently turn to second phones to help them access lifesaving support or flee from abuseโ€.

A Government spokesperson said: โ€œThere is no cost to sending an individual Emergency Alert. The system, which has been run by successive governments, is a straightforward way to give life saving advice to people in an emergency. We took the decision to issue the emergency alert this summer at the direct request of the emergency services, who were tackling 43 wildfires across the country on the day, stretching resources to the very limit and requiring military support. By following the advice issued, people were able to take the necessary steps to keep themselves safe, and the emergency services recorded a significant decrease in incidents in the following days.”