Exeter entrepreneur Dylan Schiffer is importing more than 100 breath-test machines from LeRo Corp Arizona, in the US, to install in pubs in the South West and London. Drinkers will be able to pay £1 from July to blow into the Know Your Limit machines which will tell them whether they are "OK", "high" or "unsafe to drive". British pub industry sceptics have warned the devices could encourage customers to "flirt with drink-driving". The Sunday Telegraph 18/04/04 page 6