'Robot lawyer' fights parking tickets

A chatbot programmed by a British teenager has successfully challenged 160,000 parking tickets since its launch last year. About 250,000 people have used the free service so far, said its creator, Joshua Browder. The Do Not Pay bot currently works in the UK and New York in the US. It asks a series of questions to determine the validity of a penalty notice. It can also be used to work out compensation for delayed flights.