One in 20 false call outs attended by firefighters in Midlothian over the last year were sparked by safety tests carried out by firms.
A report on unwanted fire alarm (UFA) call outs in Midlothian saw the number recorded over the last year the highest in five years with 422 incidents.
While the biggest cause was a faulty alarm accounting for nearly a quarter of calls, it was revealed that five percent were caused by companies forgetting to disconnect from the central alert system before testing their alarm, sparking an immediate response.