I KEEP seeing idiots who persist in using a mobile phone while driving – utter stupidity.

Surely there must be a way of stopping people using their phones in this way?

I feel certain car manufacturers could fit a device whereby as soon as the engine is started, it causes interference to the phone and therefore blocks phone signals until the engine is switched off again.

Such a device would put an end to this little game for good.

It would be well worth the effort.

D Harrison, Darlington.