'Fined 20s., and 22s. costs, for fraudulently travelling'

In my work I am always finding cases where people failed in their attempts to avoid paying for their travel. After all, it is only when they got caught that cases were recorded. This is from the London and South Western Railway's staff magazine, The South Western Gazette, from July 1901 (p.11):

'At the Westminster Police Court, in the 9th ultimo, E.G. Richmond, of 94 High Street, Tooting, was fined 20s., and 22s. costs, for fraudulently travelling, and 20s. and 2s. costs for giving a false name and address, or in default for one month's imprisonment. On the 6th of April defendant arrived at Vauxhall by train and attempted to pass the barrier by saying he had given his ticket up on the platform. He afterwards admitted travelling from Clapham Junction without a ticket, gave a false name and address, and eventually said he had travelled from Wimbeldon. It was ascertained he lived at 61, Effra Road, Wimbeldon. To avoid police court proceedings he left that address, but was traced to Tooting.'

I'd love to know how they traced him there...