There is a controversial debate over whether you should punish drivers of emergency vehicles when they're involved in accidents en route to 999 call outs.
Nicola Stacey was killed when her car collided with a fire engine responding to an emergency call in Sheffield. Despite evidence that the vehicle was exceeding speed guidelines, the driver has never been prosecuted.
Every year there are thousands of crashes involving emergency vehicles and now Nicola's case is being featured on ITV's Tonight programme this evening - which asks should we prosecute? Tina Gelder reports.